Kuznetsova V. MODEL REPRESENTATIONS OF THE LIE ALGEBRA $[A_2, A_1] = iA_1$ OF LINEAR NON-SELFADJOINT OPERATORS. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 2011 Dec. 12 [cited 2024 Nov. 24];100:93-112. Available from: https://ftl5.uni-sofia.bg./index.php/fmi/article/view/248