For citations:

Sorokin V.G. SOLUTIONS OF LINEAR INITIAL-BOUNDARY VALUE PROBLEMS FOR KLEIN–GORDON TYPE EQUATIONS WITH CONSTANT AND PROPORTIONAL DELAY. Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI". 2023;12(4):211-222. (In Russ.) https://doi.org/10.26583/vestnik.2023.294