Content Provider
Directory of Open Access Journals: DOAJ Articles
205
MDPI Open Access Publishing
136
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
75
Unknown
71
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
64
Université de Nantes: HAL-UNIV-NANTES
44
PANGAEA - Data Publisher for Earth & Environmental Science
41
LeibnizOpen (The Leibniz Association)
40
Digital.CSIC (Spanish National Research Council)
39
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
38
DataCite Metadata Store (German National Library of Science and Technology)
38
University of Groningen research database
31
Lund University Publications (LUP)
30
National Technical University of Athens (NTUA): DSpace
27
National Chung Hsing University Institutional Repository - NCHUIR
22
TechnoRep - Faculty of Technology and Metallurgy Repository
20
Université de Lorraine: HAL
20
Royal Institute of Technology, Stockholm: KTHs Publication Database DiVA
19
Technical University of Denmark: DTU Orbit
19
Universidade Federal de Santa Catarina: Repositório Institucional da UFSC
17
Wageningen UR (University & Research Centre): Digital Library
17
CIRAD: Agritrop (Centre de coopération internationale en recherche agronomique pour le développement)
16
Université de Montpellier: HAL
16
theses.fr
16
CIRAD: HAL (Agricultural Research for Development)
15
SciELO Brazil (Scientific Electronic Library Online)
15
Università degli Studi di Ferrara: CINECA IRIS
14
University of Liège: ORBi (Open Repository and Bibliography)
13
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
12
Xiamen University Institutional Repository
12
Digital Library of University of Maribor
11
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
11
Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP
11
DRO - Deakin Research Online
10
Universidade Federal do Rio Grande do Sul (UFRGS): Lume
9
University of São Paulo: Digital Library of Theses and Dissertations
9
Université de Lorraine: PETALE (Publications Et Travaux Académiques de LorrainE)
9
SCIDAR - A Digital Archive of the University of Kragujevac
8
ScholarWorks@UNIST (Ulsan National Institute of Science and Technology)
8
Universidade of Minho: RepositóriUM
8
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR
7
HAL - Université de La Rochelle
7
Institut national des sciences de l'Univers: HAL-INSU
7
USP Production Repository (Universidade de São Paulo)
7
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR
6
National Archive of PhD Theses (National Documentation Centre Greece)
6
Portail HAL Institut Agro
6
The University of Queensland: UQ eSpace
6
Theses Canada/Thèses Canada (Library and Archives Canada)
6
Universiti Putra Malaysia: PSAS (Perpuskataan Sultan Abuld Samad) Institutional Repository
6
more ...