Coassociativity, cohomology and quantum determinantOziewicz, Zbigniew; Paal, Eugen; Rozanski, JerzyAlgebras, groups and geometries1995 / p. 99-109 https://www.researchgate.net/publication/269024862_Coassociativity_cohomology_and_quantum_determinant https://www.ester.ee/record=b3376117*est