The World Bank (WB); European Bank for Reconstruction and Development (EBRD); European Investment Bank (EIB), 'Enterprise Survey 2019 (North Macedonia)', 2020
Portugal Instituto Nacional de Estatística (INE); Minnesota Population Center (University of Minnesota), 'XII Recenseamento Geral da População e II Recenseamento Geral da Habitação 1981 - IPUMS Subset (Portugal)', 2016
International Food Policy Research Institute (IFPRI), '2015 Nutrition subregion profile: Eastern Europe', International Food Policy Research Institute (IFPRI), Washington, DC, 2015
International Food Policy Research Institute (IFPRI), '2014 Nutrition country profile: Austria', In Global nutrition report 2014: Actions and accountability to accelerate the world's progress on nutrition. Supplementary Online Material, International Food Policy Research Institute (IFPRI), Washington, D.C., 2014