Daletskii, Yu. L., and B. L. Tsygan. “Operations on Hochschild and Cyclic Complexes”. Methods of Functional Analysis and Topology 5, no. 4 (December 25, 1999): 62–86. Accessed December 17, 2025. https://zen.imath.kiev.ua/index.php/mfat/article/view/108.