Content Provider
Oxford University Press (via Crossref)
1,553
Canadian Science Publishing (via Crossref)
1,295
Springer Nature (via Crossref)
963
ScienceDirect (Elsevier - via Crossref)
695
ScienceDirect (Elsevier)
511
Informa (via Crossref)
440
Canadian Science Publishing
336
Oxford University Press
286
Cambridge University Press
277
Brill (via Crossref)
218
Wiley Online Library (via Crossref)
180
De Gruyter (via Crossref)
164
JSTOR (via Crossref)
97
Wiley Online Library
82
University of Chicago Press (via Crossref)
76
Informa
62
Sciendo (de Gruyter - via CrossRef)
51
Brill
25
Cambridge University Press (via Crossref)
25
University of Chicago Press
25
The University of Queensland: UQ eSpace
24
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
20
JSTOR
19
De Gruyter
18
SAGE Publications (via Crossref)
14
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
14
Queen's University Belfast Research Portal
12
Frontiers (Publisher)
10
University of St Andrews: Digital Research Repository
9
Aberdeen University Research Archive (AURA)
5
Unknown
5
Ghent University Academic Bibliography
4
SAGE Publications
4
Schweizerbart Science Publishers (via Crossref)
4
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
3
IRIS Università degli Studi di Napoli Federico II
3
Opin vísindi (Iceland)
3
Sapienza Università di Roma: CINECA IRIS
3
Utrecht University Repository
3
ARPI - Archivio della Ricerca dell'Università di Pisa
2
Bentham Science Publishers (via Crossref)
2
IRIS UNIPV (Università degli studi di Pavia)
2
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria)
2
Mary Ann Liebert, Inc., publishers (via Crossref)
2
OpenMETU (Middle East Technical University)
2
Padua Research Archive (IRIS - Università degli Studi di Padova)
2
Repositório da Universidade Nova de Lisboa (UNL)
2
Technical University of Denmark: DTU Orbit
2
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
2
University of Stirling: Stirling Digital Research Repository
2
more ...