AUTHOR=Böhm Robert TITLE=Intuitive Participation in Aggressive Intergroup Conflict: Evidence of Weak Versus Strong Parochial Altruism JOURNAL=Frontiers in Psychology VOLUME=7 YEAR=2016 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2016.01535 DOI=10.3389/fpsyg.2016.01535 ISSN=1664-1078