张连众, 王. 许. (2010). Punishment in optional public goods games. Chinese physics B, 19(11), 30-34. https://doi.org/10.1088/1674-1056/19/11/110201
Chicago Style (17th ed.) Citation张连众, 王震 许照锦. "Punishment in Optional Public Goods Games." Chinese Physics B 19, no. 11 (2010): 30-34. https://doi.org/10.1088/1674-1056/19/11/110201.
MLA (9th ed.) Citation张连众, 王震 许照锦. "Punishment in Optional Public Goods Games." Chinese Physics B, vol. 19, no. 11, 2010, pp. 30-34, https://doi.org/10.1088/1674-1056/19/11/110201.
Warning: These citations may not always be 100% accurate.