A. I. Bandura, S. I. Nykorovych, і T. V. Vasylyshyn, «Block-symmetric and weakly symmetric polynomials on Banach spaces of absolutely summable in a power $p\in [1,+\infty)$ sequences», Mat. Stud., вип. 66, вип. 1, с. 71-79, Вер 2026.