A. V. Lakeyev, V. A. Rusanov, A. V. Daneev, and Y. D. Aksenov, “ON REALIZATION OF THE SUPERPOSITION PRINCIPLE FOR A FINITE BUNDLE OF INTEGRAL CURVES OF A SECOND-ORDER BILINEAR DIFFERENTIAL SYSTEM”, Adv. Differ. Equ. Control Process., vol. 30, no. 2, May 2023.