Palik, J. (2019). Civil war theory testing: How greed, horizontal inequalities, and institutions explain the Yemeni civil war between 2004 and 2009?. z-azdaság eview of conomic heory and olicy, 14(1), 103 - 115. etrieved from https://retp.vertetics.hu/index.php/retp/article/view/91