| unesco.org | United Nations Educational, Scientific and Cultural Organisation (UNESCO) |
| stm-assoc.org | STM: International Association of Scientific, Technical and Medical Publishers |
| eblida.org | Eblida |
| inasp.info | International Network for the Availability of Scientific Publications |
| ifs.se | International Foundation for Science |
| ifip.or.at | Ifip - It At Your Fingertips |
| iahr.org | International Association of Hydraulic Engineering and Research [IAHR] |
| doi.org | The Digital Object Identifier System |
| ifla.org | International Federation of Library Associations |
| icsu.org | International Council for Science |
| nrc.ca | www.cisti.nrc.ca/ |
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