RT Article T1 Social field theory, libertarianism, and violence: (comment: Michael N. Nagler; Barry S. Zellen) JF International journal on world peace VO 3 IS 4 SP 9 OP 52 A1 Rummel, J. R. LA English YR 1986 UL https://krimdok.uni-tuebingen.de/Record/1639488545 K1 Libertarismus K1 Kollektive Gewalt