Christensen, Lars, Oana Veliche, and Jerzy Weyman. “Free Resolutions of Dynkin Format and the Licci Property of Grade $3$ Perfect Ideals”. MATHEMATICA SCANDINAVICA 125, no. 2 (October 19, 2019): 163-178. Accessed November 19, 2019. https://www.mscand.dk/article/view/114894.