Content Provider
ScienceDirect (Elsevier - via Crossref)
18
Directory of Open Access Journals: DOAJ Articles
13
ScienceDirect (Elsevier)
7
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
2
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
1
DSpace@IIT Bombay (Indian Institute of Technology)
1
Digital Repository @ Iowa State University
1
Informa (via Crossref)
1
OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)
1
Opin vísindi (Iceland)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
The Research Repository @ WVU (West Virginia University)
1
The University of Texas at Austin: Texas ScholarWorks
1
University of Calgary Journal Hosting
1