%0 Journal Article %T Enhancing the sample diversity of snowball samples: Recommendations from a research project on anti-dam movements in Southeast Asia %A Julian Kirchherr %A Katrina Charles %J Archive of "PLoS ONE". %D 2018 %R 10.1371/journal.pone.0201710 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6104950/