Pißler, Knut Benjamin MPI for Comparative and International Private Law, Max Planck Society;
https://pure.mpg.de/pubman/item/item_1818735_3 (Any fulltext)
Pißler, K. B. (2012). Socialist Law. In J. Basedow, K. J. Hopt, & R. Zimmermann (Eds.), The Max Planck Encyclopedia of European Private Law (pp. 1565-1568). Oxford: Oxford University Press.