Drensky V., “Polynomial identity rings - Part A - Combinatorial aspects in PI-rings”, Polynomial Identity Rings, Advanced Courses in Mathematics CRM Barcelona, 2004, 1
А. Я. Белов, “Ассоциативных $PI$-алгебр, совпадающих со своим коммутантом, не существует”, Сиб. матем. журн., 44:6 (2003), 1239–1254 ; A. Ya. Belov, “No associative $PI$-algebra coincides with its commutant”, Siberian Math. J., 44:6 (2003), 969–980
Gupta, CK, “The finite basis question for varieties of groups - Some recent results”, Illinois Journal of Mathematics, 47:1–2 (2003), 273
Gupta, CK, “A simple example of a non-finitely based system of polynomial identities”, Communications in Algebra, 30:10 (2002), 4851
Gupta, CK, “A non-finitely based system of polynomial identities which contains the identity x(6)=0”, Quarterly Journal of Mathematics, 53 (2002), 173
В. В. Щиголев, “Конечная базируемость $T$-пространств над полями нулевой характеристики”, Изв. РАН. Сер. матем., 65:5 (2001), 191–224 ; V. V. Shchigolev, “The finite basis property of $T$-spaces over fields of characteristic zero”, Izv. Math., 65:5 (2001), 1041–1071
Giambruno, A, “On the identities of the Grassmann algebras in characteristic p > 0”, Israel Journal of Mathematics, 122 (2001), 305