| U.S. Department of Agriculture. Agricultural Research Service |
Academic/research institution |
| U.S. Department of Energy |
Funder |
| U.S. Department of Energy - Data |
Funder |
| U.S. Department of Veterans |
Funder |
| U.S. Federal Government |
Funder |
| U.S. Geological Survey - Data |
Funder |
| UK Government. Department for International Development |
Funder |
| UK Government. Department for International Development - Data |
Funder |
| Umeå University |
Academic/research institution |
| UNED |
Academic/research institution |
| United Nations Educational, Scientific and Cultural Organization (UNESCO) |
Funder |
| United States Agency International Development (USAID) - Data |
Funder |
| Universidad Autónoma del Estado de México |
Academic/research institution |
| Universidad Carlos III de Madrid |
Academic/research institution |
| Universidad CEU Cardenal Herrera |
Academic/research institution |
| Universidad Complutense de Madrid |
Academic/research institution |
| Universidad de Alcalá |
Academic/research institution |
| Universidad de Antioquia |
Academic/research institution |
| Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
Academic/research institution |
| Universidad de Burgos |
Academic/research institution |
| Universidad de Cantabria |
Academic/research institution |
| Universidad de Costa Rica |
Academic/research institution |
| Universidad de Extremadura |
Academic/research institution |
| Universidad de Granada |
Academic/research institution |
| Universidad de Huelva |
Academic/research institution |
