Christensen, Lars Winther, 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 July 24, 2026. https://journals.msp.org/mscand/article/view/218.