About
Technology
Issues
FAQ
Search
Rankings
Journals
Disciplines
Institutions
Schools/Departments
Field Rankings
Scientometrics
★★(★)
Articles
h
-index
g
-index
Journals
Co-Authors
Publications (by citations)
Publications (by year)
Citation Distribution
Citing Bodies
Top Citing Authors
Top Citing Institutions
Top Citing Schools
Top Citing Journals
Top Citing Disciplines
exaly
›
Authors
›
Phil Withers
›
top-authors
Phil Withers
Risø DTU National Laboratory for Sustainable Energy
655
(top 0.1%)
papers
29.9K
(top 1%)
citations
80
(top 1%)
h
-index
143
(top 1%)
g
-index
739
all documents
32.8K
doc citations
2.2K
citing journals
105
times ranked
Top Authors (by citations)
#
Author
Articles
Citations
R ARank
R CRank
1
Axel Steuwer
43
3,316
1
1
2
Timothy Burnett
52
3,185
1
1
3
Michael Preuss
48
2,989
1
1
4
Peter D. Lee
21
1,853
5
3
5
Éric Maire
10
1,550
5
3
6
Sheng-Chuan Wu
12
1,139
1
1
7
Peter D Lee
5
1,115
6
3
8
Philip B Prangnell
17
1,069
2
3
9
Lyndon E Edwards
19
1,018
2
2
10
Moataz Attallah
3
920
22
6
11
Iain Todd
6
916
6
1
12
Chu Lun Alex Leung
4
826
8
5
13
Paul R Shearing
10
773
32
23
14
Robert Atwood
3
769
17
5
14
Sebastian Marussi
3
769
7
5
16
Ali Gholinia
15
750
1
21
17
Mark Daymond
24
725
3
3
18
Samuel A Mcdonald
20
715
1
1
19
Alexis Deschamps
3
655
11
6
20
Zhengkai Wu
7
589
2
2
21
John A Francis
19
574
1
2
22
Michael Fitzpatrick
13
561
3
2
23
Howard J Stone
8
551
6
4
24
João Quinta da Fonseca
14
548
2
2
25
Luke N Carter
1
539
6
2
26
T James Marrow
13
532
3
9
26
Dirk L Engelberg
11
532
3
3
28
Constantinos Soutis
11
531
5
5
29
Serafina Consuelo Garcea
2
526
1
1
30
Pablo López Crespo
15
508
3
2
30
Dan Jl Brett
6
508
79
51
32
Xun Zhang
14
498
1
1
33
David S Eastwood
4
457
5
5
34
Joseph D Robson
2
450
9
5
35
Richard Moat
10
445
2
2
36
David A Hall
12
440
2
1
37
Akbar Heidarzadeh
1
436
30
1
37
David P Field
1
436
19
2
37
Farzad Khodabakhshi
1
436
12
5
37
Gurel Cam
1
436
2
2
37
A P Gerlich
1
436
30
2
37
Rustam Kaibyshev
1
436
29
7
37
Sergey Mironov
1
436
17
5
37
Aude Simar
1
436
29
3
45
P Lopez-Crespo
10
433
3
2
46
Stewart Williams
4
386
14
11
46
H K D H Bhadeshia
7
386
4
8
48
Z Yang
3
383
2
4
49
Matthew J Roy
10
374
1
1
50
William Lionheart
16
372
1
19
51
Fabien Léonard
8
367
1
4
52
Samuel Cooper
3
353
11
8
53
Giovanni Bruno
10
346
10
4
54
Laurent Babout
8
339
4
3
54
Ping Xiao
11
339
7
6
56
Valeriy Titarenko
9
329
1
1
56
Anton Shterenlikht
7
329
2
1
58
Simone Carmignato
1
305
48
7
58
Marena Manley
1
305
26
7
58
Charles Addison Bouman
1
305
33
7
58
Charlotte K Hagen
1
305
20
2
58
David A Grimaldi
1
305
38
26
58
Veerle Cnudde
1
305
100
18
58
Anton du Plessis
1
305
59
16
58
Stuart R Stock
1
305
25
10
66
Andrew John Pinkerton
7
291
2
3
67
Wenyuan Ren
1
289
5
4
67
Chunlei Qiu
1
289
2
3
67
Amr ElShaer
1
289
39
5
67
Hany Hassanin
1
289
23
5
67
Sheng Yue
1
289
4
4
67
Zhenjun Yang
1
289
10
4
73
Sarah Haigh
6
269
31
90
74
Ying Wang
8
254
1
1
75
Myriam Dumont
3
252
5
5
76
Thomas M M Heenan
3
247
72
51
76
Xiaorong Zhou
7
247
8
13
76
Thomas J A Slater
4
247
5
4
79
Harshad Bhadeshia
4
239
8
9
80
Mallikarjun Karadge
4
233
2
2
81
Andrey Jivkov
3
227
15
7
81
Eann A Patterson
3
227
9
4
83
Jakob Sauer Jørgensen
8
207
1
1
83
Shelley D Rawson
6
207
1
1
83
Samuel Tammas-Williams
1
207
2
2
86
Samuel Tammas-Williams
3
203
4
5
86
Everth Hernández-Nava
3
203
4
6
86
Russell Goodall
3
203
7
4
89
Erik Mejdal Lauridsen
4
196
14
15
90
Paul T Mativenga
3
193
10
4
91
Guozheng Kang
2
189
37
26
91
Yongle Sun
5
189
9
3
93
Daniil Kazantsev
11
180
1
3
94
Tianzhu Sun
4
175
1
1
95
Joe Kelleher
4
173
4
3
96
Paul J Hogg
2
169
6
3
97
Willem G Sloof
4
167
7
15
98
Russell Garwood
5
161
5
4
99
Filomeno Martina
1
160
21
22
99
Paul Colegrove
1
160
13
10
99
Sofiane Terzi
1
160
2
1
102
Cem Örnek
2
158
16
3
103
Yi Zeng
1
154
8
6
103
Mingwen Bai
1
154
20
7
103
Xiang Xiong
1
154
7
5
103
Dini Wang
1
154
12
5
103
Xiang Xiong
1
154
6
4
108
Prasad Potluri
6
152
1
9
109
Thilo Pirling
2
149
2
2
110
Roger Schurch
8
148
4
4
111
Suleyman Karabal
1
144
1
1
112
Alexander M. Korsunsky
6
141
34
53
112
Feizal Yusof
4
141
1
1
114
Amir A Shirzadi
4
140
2
3
115
P M Manning
6
137
13
22
115
Zeshan Yousaf
5
137
1
2
117
Clare Grey
1
133
394
351
117
Joan Vila-Comamala
1
133
33
23
117
Hee Jung Chang
1
133
15
10
120
Jonathan C Jarvis
2
132
25
24
120
Robert Stanley Stephenson
2
132
16
12
120
Theodora Nikolaidou MBChB
2
132
6
5
120
Mark R Boyett
2
132
50
52
124
Katherine Dobson
6
131
5
8
125
Sofya S Titarenko
4
129
1
1
125
Xuekun Lu
5
129
13
31
127
Jekaterina Maksimcuka
2
126
1
1
128
Richard F Preziosi
6
120
8
201
128
Teruo Hashimoto
4
120
2
3
130
Parmesh J Gajjar
8
118
1
4
130
Hamidreza Abdolvand
4
118
5
7
132
Edoardo Pasca
7
117
1
1
132
Henggui Zhang
2
117
61
57
134
Philipp Frankel
2
116
12
13
135
Soran Birosca
1
115
12
9
135
Michael J Sherratt
3
115
15
27
137
Gaston Rauchs
8
108
1
2
138
William I Sellers
5
107
14
28
138
Gary Schajer
3
107
1
1
140
Stephen H Gilbert
1
106
32
19
140
Jules C Hancox
1
106
56
38
140
Jichao Zhao
1
106
61
71
140
Oleg V Aslanidi
1
106
30
17
144
Søren Schmidt
2
104
36
34
145
Bradley Diak
1
103
6
2
145
Jette Oddershede
1
103
23
16
145
Marta Majkut
1
103
9
7
148
Zhao Shen
2
101
12
10
148
Hua-Tang Cao
2
101
8
6
150
Andrew Sherry
3
98
2
1
151
Roger Schurch
6
96
6
15
152
Sarah H Cartmell
1
95
30
20
152
Gui Yun Tian
3
95
54
60
154
Mansoureh Norouzi Rad
2
93
2
2
155
Nicolas Larrosa
1
92
8
2
155
Anthony J Peyton
4
92
29
24
157
Stephen R Hallett
1
90
49
26
158
Vladimir Yufit
1
89
46
33
158
Nigel P Brandon
1
89
55
58
158
Jeff Gelb
1
89
11
18
161
Matthew E Curd
3
88
1
1
162
Victoria L Newton
1
86
4
2
162
Wuliang Yin
3
86
33
31
162
Lee Margetts
3
86
11
6
162
Mathew Peet
1
86
8
18
162
Clare Austin
1
86
10
5
162
Eliot D Specht
1
86
47
42
162
Sudarsanam Babu
1
86
85
66
162
Rachel E Watson
1
86
44
30
162
Lucy A Walton
1
86
4
2
171
Matthew C Veale
4
83
13
11
171
Thomas Connolley
1
83
62
60
171
Simon D M Jacques
3
83
19
33
171
Zhongyun Fan
1
83
46
27
175
Matteo Russo
1
82
33
23
176
Sybrand van der Zwaag
1
80
36
37
176
Linda Boatemaa
1
80
4
3
176
Thomas J Simonsen
1
80
18
23
176
Andrew Alderson
2
80
11
20
176
Martin J Turner
5
80
1
3
176
Julie L Fife
1
80
19
12
182
Ca Simpson
4
78
2
1
183
Lars P Mikkelsen
3
76
11
15
184
Michael B Prime
1
75
22
9
185
Anders Kaestner
4
74
16
37
186
Suelen Barg
3
73
11
33
186
Pei Yang
3
73
3
3
188
Andrew M Beale
1
72
95
88
188
Evelina Ametova
5
72
4
4
190
Xiaofeng Zhao
2
71
21
17
190
Evangelos Papoutsellis
4
71
2
2
190
Ryan Warr
4
71
1
1
193
Jason A Dunlop
2
70
10
10
194
Laurent Daniel
4
68
14
19
194
Francisco A García-Pastor
4
68
1
2
194
Richard S Trask
1
68
12
10
194
Neil Bourne
5
68
3
6
194
Ian P Bond
1
68
13
13
199
Cathy Hollis
1
66
19
8
200
Kathryn Else
4
63
14
57
200
Vedrana Andersen Dahl
2
63
12
8
200
James D B O'sullivan
4
63
2
9
200
Ian A Kinloch
2
63
37
123
204
Nghia T Vo
2
61
4
23
205
Kristine Munk Jespersen
1
59
4
4
206
H Puga
2
58
13
15
206
Jack Donoghue
4
58
2
22
208
Julian Jones
1
57
67
88
208
Sara Nonni
1
57
18
20
208
Charlotte A Brassey
2
57
8
11
208
Jesus del Val Garcia
1
57
16
14
208
Andrew C Kitchener
2
57
22
50
208
Shirley M Northover
2
57
2
2
214
Vildan Bayram
2
56
4
6
215
Mahmoud Mostafavi
3
55
11
17
216
Andrzej Baczmański
1
54
18
10
216
Monica Ceretti
1
54
31
18
216
Yung C Shin
1
54
24
34
216
Xie Xie
1
54
20
36
216
James Antonaglia
1
54
5
12
221
Arash Rabbani
1
53
16
20
221
Ali Q Raeini
1
53
10
10
221
Qingrong Xiong
1
53
3
2
224
Konjengbam Darunkumar Singh
1
52
9
3
224
Nong Gao
1
52
37
34
224
Dawei Hu
3
52
2
3
224
Pei Yan
2
52
4
3
224
Xiang Li Zhong
3
52
1
1
229
Marc DeGraef
1
51
81
51
229
Nicolaie Markocsan
1
51
26
42
229
Andrew T Polonsky
1
51
14
11
229
Mclean P Echlin
1
51
36
40
229
Gemma Fardell
2
51
1
1
229
Saransh Singh
1
51
8
3
235
N Shokri
1
50
24
32
235
David Nowell
2
50
6
14
235
Amir Keshmiri
1
50
17
13
238
Sheena Cruickshank
3
49
10
47
238
Alan Cocks
2
49
23
27
238
Ed J Pickering
2
49
6
20
241
Sepideh Aliasghari
1
47
1
1
241
Peter J Martin
2
47
7
9
241
Grant Campbell
2
47
14
26
241
Miroslav Šmíd
1
47
18
5
245
Falk Schulze-Küppers
1
46
17
16
245
Michel Barsoum
1
46
182
290
245
Claude Estournes
2
46
40
67
245
Michael Ghidiu
1
46
22
39
245
Daniel Monceau
2
46
23
24
245
Thai T H Nguyen
3
46
3
4
245
Stefan Baumann
1
46
53
46
245
Julia G Behnsen
2
46
1
1
245
S M Fairclough
1
46
45
46
245
James Carr
2
46
5
5
245
Franck Nozahic
2
46
3
3
256
Paul M Barrett
1
45
57
128
256
P L Falkingham
1
45
23
78
256
Anthony
1
45
45
57
259
Matteo Benedetti
4
44
8
23
259
Brian M Patterson
2
44
40
47
261
Bosheng Zhang
1
43
5
12
261
Xiaolei Fan
1
43
73
94
261
Benjamin Hornberger
3
43
3
8
261
Arthur A Garforth
1
43
33
22
261
Xiaoxia Ou
1
43
12
17
266
Malte Ogurreck
3
42
6
25
266
Annika Borgenstam
1
42
26
33
266
Mark G Gee
1
42
10
20
266
Peter Hedström
1
42
47
45
266
Joakim Odqvist
1
42
33
30
266
Krzysztof Grudzien
1
42
22
12
266
Ida Borgh
1
42
7
6
273
Mithila Achintha
1
41
6
7
273
Monica Jane Emerson
1
41
4
8
273
Paul M Mummery
1
41
15
13
273
Fabrice Pierron
1
41
47
40
273
S Van Der Zwaag
1
41
52
69
273
Anders Bjorholm Dahl
1
41
7
10
279
Genoveva Burca
3
40
4
25
279
Ziyi Wang
1
40
7
3
279
Chanho Lee
1
40
162
225
279
John J Lewandowski
4
40
7
61
283
Xiangli Zhong
2
39
1
1
284
Dimitrios Zarouchas
1
37
31
30
284
Mohamed Nasr Saleh
1
37
17
19
284
Gilles Lubineau
1
37
62
75
284
Arief Yudhanto
1
37
18
20
288
Masayoshi Kumagai
1
36
12
8
288
Anatoly G Yagola
1
36
13
7
288
Kyle G Webber
2
36
48
80
288
Jie Jie Tong
1
36
9
16
288
Hitoshi Soyama
1
36
8
16
288
Gabor Ribarik
1
36
6
10
294
Roger B J Benson
1
35
69
108
294
Karl T Bates
1
35
31
92
294
Martin S Andersen
1
35
13
11
297
Monica M Grady
1
34
62
148
297
Justyna Kulczyk-Malecka
1
34
6
5
297
Andrew S Macdonald
1
34
62
171
297
Anuj Prajapati
1
34
1
1
297
Chris G Johnson
2
34
10
19
302
George T Gray Iii
1
33
11
22
302
Anton S Tremsin
1
33
103
91
304
Joel D Turner
1
32
2
1
304
Etienne Bousser, PEng
3
32
3
16
306
Olga Tsigkou
1
31
11
32
307
Arthur T Motta
1
30
26
43
307
Yang Liu
1
30
1
1
307
Stuart B Lyon
3
30
16
35
307
Zhenbo Zhang
1
30
9
15
307
Geert Van Eyndhoven
1
30
5
5
307
Peter Kelly
1
30
27
23
313
Zhili Feng
1
29
57
72
313
Valery V Pickalov
1
29
5
2
313
Hann Choo
1
29
41
73
313
Wanchuck Woo
1
29
29
33
313
Srikanth Nagella
1
29
1
1
318
Jennifer Anné
1
28
13
12
318
Zheng Fan
1
28
17
21
318
Simon R Gibbon
2
28
12
23
321
Gianluca Tozzi
1
27
37
59
321
Marta Peña Fernández
1
27
12
16
321
En-Yu Guo
2
27
15
33
321
David Dye
1
27
55
85
325
Chaitanya Paramatmuni
1
26
2
3
325
Jurij Koruza
1
26
75
110
325
Chun Tan
1
26
27
53
325
Sohrab R Daemi
1
26
19
35
325
Fionn P.E. Dunne
1
26
27
42
325
Caroline B Jones
1
26
42
43
325
Andrew J Atkinson
1
26
39
54
325
Halina Halina Dobrzynski
1
26
76
107
325
Joseph Yanni
1
26
31
48
334
Bernhard Tjaden
1
25
17
29
334
Sarah Fisher
1
25
1
1
334
Visweswara C Gudla
2
25
9
14
337
Kevin J Roberts
2
24
22
44
337
Duncan Slater
1
24
2
2
337
Jeremy Millett
2
24
5
9
337
Yuri M Marusik
2
24
7
6
337
Simon M Rowland
4
24
7
14
337
Hrishikesh Bale
2
24
9
25
343
David A Neave
1
23
20
37
343
Eric N Brown
4
23
6
19
343
Marie Edmonds
1
23
76
147
346
Xizhong Chen
1
22
13
11
346
Vigilio Fontanari
1
22
29
32
346
Anders Bjorholm Dahl
1
22
8
40
346
James A Elliott
1
22
36
89
346
Nancy R Sottos
1
22
84
120
346
Jon P Wright
2
22
45
116
346
Alistair J Reid
1
22
11
11
346
Claire Delplancke
1
22
3
3
346
Xinhua Wu
2
22
16
47
355
Adriana Encinas-Oropesa
1
21
8
10
355
Serra Topal
1
21
2
1
355
Jian-Ying Wu
1
21
12
20
355
Hua Ke
1
21
5
5
355
Marino Quaresimin
1
21
25
38
360
Xiaofeng Zhao
1
20
32
42
360
Rade Vignjevic
1
20
10
13
360
Anatoly D Resnyansky
2
20
3
4
364
Thomas Hadfield Simm
1
19
14
16
364
Prabhat Munshi
1
19
12
7
364
Michele Curioni
1
19
38
64
364
Saad Syed Iqbal Ahmed
1
19
1
1
364
Simon R Arridge
1
19
135
169
364
Alexander George Monteith
1
19
1
15
364
Manish Kumar Bajpai
1
19
10
9
364
James E Jepson
1
19
3
24
364
Phalguni Gupta
1
19
15
15
373
Steve Ooi
1
18
8
19
374
Gustavo Egea
1
17
50
956
374
Hakan Cetinel
1
17
4
5
374
Jiacheng Wang
1
17
7
8
374
Patricia Garcia-Canadilla
1
17
29
33
374
Matthew S Blackmur
1
17
6
9
374
Subrata Ghosh
1
17
251
439
374
Nicholas G Jones
1
17
24
39
374
Amir-Hossein Mahmoudi
1
17
9
12
374
Sayeed Hossain
1
17
6
9
374
Lucía Peña-Pérez
1
17
6
6
374
Catherine Disney
1
17
5
5
374
Subrata Ghosh
1
17
30
48
374
Tian Xia
1
17
7
11
374
Bart H Bijnens
1
17
127
178
388
Robert Cernik
2
16
13
72
388
Jessica K R Boult
1
16
37
124
388
John C Waterton
1
16
79
179
388
Ioannis S Fragkopoulos
1
16
2
4
388
yann Jamin
1
16
57
184
388
Charitha Pattiaratchi
1
16
68
213
388
Simon Walker-Samuel
1
16
37
120
388
Thomas D Turner
1
16
12
29
388
Simon P Robinson
1
16
84
319
388
Hiroyuki Kato
1
16
1
2
388
Erik M Lauridsen
1
16
10
26
388
Nicolas Gueninchault
1
16
8
10
400
Daniel Sykes
1
15
1
1
400
Aduragbemi Adebogun
2
15
1
1
400
Allan Matthews
2
15
32
86
403
Andre Phillion
1
14
16
34
403
Claudia Martins carneiro
1
14
78
149
403
Chun Li
1
14
17
30
403
Mohammad Sanami
1
14
3
10
403
Steve D Sharples
1
14
13
17
403
Tobias Starborg
1
14
13
90
409
Sheila E Francis
1
12
57
174
409
Samantha J Borland
1
12
6
17
409
Thorsten Becker
1
12
10
15
409
Alistair Jw Garner
1
12
29
66
409
Ann Canfield
1
12
15
44
409
Keith Brennan
1
12
38
109
409
Selim Barhli
1
12
5
9
409
Luis Saucedo-Mora
1
12
7
10
409
Nick Ashton
1
12
7
16
409
John M Gray
1
12
21
42
409
Folkert Bleichrodt
1
12
3
8
420
Clara Anduix-Canto
1
11
11
21
420
Albert Duncan Smith
2
11
1
4
420
Fiona C Meldrum
1
11
71
177
420
Ming Lei
1
11
61
137
420
Mark A Levenstein
1
11
21
45
420
Alexander N Kulak
1
11
46
91
420
Ian R Collins
1
11
10
40
420
Hugo K Christenson
1
11
16
36
420
Yi-Yeoun Kim
1
11
38
90
420
Jose R A Godinho
1
11
2
15
420
Nikil Kapur
1
11
57
116
420
Kuhan Chellappah
1
11
2
1
420
Timothy D Butters
1
11
7
14
433
Jan Kusiak
1
10
15
13
433
Xiang Zhang
1
10
39
79
433
Yanwen Liu
1
10
15
18
433
Stephan Handschuh
1
10
33
70
433
Suren Chilingaryan
1
10
40
56
433
David Smyth-Boyle
1
10
6
15
433
Barry Marsden
1
10
7
11
433
Muntasir Hashim
1
10
1
1
433
Farnoosh Farhad
1
10
3
3
433
Loic Courtois
1
10
5
14
443
Ioanna D Styliari
2
9
9
29
444
Keyron Hickman-Lewis
1
8
10
96
444
Miguel Á Hernández
2
8
3
9
444
Anna Maria Paradowska
1
8
42
82
444
Darragh Murnane
1
8
21
33
444
David Wacey
1
8
43
80
444
Robert B Hammond
1
8
41
57
444
Jun Sun
1
8
5
13
444
Suraiya Zabeen
1
8
1
1
444
Bill Clyne
1
8
18
41
444
Konstantinos D Bakoglidis
2
8
7
24
454
Błażej Błażejowski
1
7
12
26
454
Jing-en Gao
1
7
8
16
454
Stefan Michalik
1
7
22
48
454
Christopher Duffin
1
7
6
14
454
Peter K Liaw
1
7
115
307
454
Zhao-Ping Lu
1
7
92
206
454
Michael Atkinson
1
7
4
4
461
Martin R Bache
1
6
3
11
461
Hector A Calderon
1
6
20
78
461
Sun Ig Hong
1
6
32
75
461
Siddhartha Roy
1
6
10
14
461
Christopher K Egan
1
6
5
16
466
Uwe Bergmann
1
5
174
322
466
Paul Sellin
1
5
55
105
466
Roy A Wogelius
1
5
38
118
466
Sophia Bethany Coban
1
5
9
18
466
Melanie J Leng
1
5
254
698
466
Bart E Van Dongen
1
5
61
184
466
Taha Sochi
1
5
8
22
473
Terry Dickerson
1
4
6
22
473
Michele Dallago
1
4
9
14
473
Natalie M Warburton
1
4
10
29
476
Qiong Cai
1
3
78
198
476
Egemen Avcu
1
3
14
40
476
Claire Adjiman
1
3
83
189
476
John R Yates
1
3
8
13
476
Alejandro S Cruces
1
3
10
15
476
Steven Randolph
1
3
15
55
482
David Lunt
1
2
6
16
482
Zartasha Mustansar
1
2
8
12
482
Susumu Onaka
1
2
10
14
485
Bernhard Keimer
1
1
274
585
485
Anita Olszówka-Myalska
1
1
8
15
485
Mihail Petkovski
1
1
7
13
485
Mark D Callaghan
1
1
9
28
485
María Belén Moreno Morales
1
1
12
18
485
Nikolaus L Cordes
1
1
11
21
485
Kyle Fogarty
1
1
1
1
485
Ali Chirazi
2
1
1
1
493
Noel O'Dowd
1
0
21
36
493
Kris Thielemans
1
0
73
183
493
P J Tan
1
0
12
26
493
Matthias Joachim Ehrhardt
1
0
29
63
493
Giacomo Risitano
1
0
20
47
493
Andrea Spagnoli
1
0
32
51
493
Vittorio Di Cocco
1
0
19
26
493
Kris Thielemans
1
0
74
166
493
David W Mccomb
1
0
62
148
site/software ©
exaly
; All materials licenced under
CC by-SA
.