Курмангалиев, Е., and А. Бекбауова. “CONSTRUCTION OF A SOLUTION IN A BROAD SENSE OF A LINEAR COUNTING SYSTEM OF PARTIAL DERIVATIVE EQUATIONS”. Bulletin of Abai KazNPU. Series of Physical and Mathematical Sciences, vol. 87, no. 3, Sept. 2024, pp. 40-48, doi:10.51889/2959-5894.2024.87.3.003.