a meta-analysis of the evidence in low- and middle-income countries
Fernández de Velasco, Guido ; Leppert, Gerald ; Moull, Kevin ; Prowse, Martin ; Puri, Jyotsna ; Reumann, Andreas ; Sánchez Torrente, Luis
Bonn, Germany : German Institute for Development Evaluation (DEval), 2021
[Online Ressource]