1. Basic Structures of Modern Algebra
2. Benediktovich, I.I. 1991.Polylinear identities of the pair (K2, sl2(K)) over a field of characteristic two, Vol. 2, 100–101. Vestsi Akad. Navuk BSSR, Ser. Fiz.Mat. Navuk. Russian English summary
3. Polynomial identities for 2�2 matrices