%0 Journal Article
%T Evidence for proactive and reactive helping in two- to five-year-olds from a small-scale society
%A Felix Warneken
%A Hilary Aime
%A Lara B. Aknin
%A Tanya Broesch
%J Archive of "PLoS ONE".
%D 2017
%R 10.1371/journal.pone.0187787
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5687751/