\Bibitem{AkhSku24} \by V.~V.~Akhlynina, A.~L.~Skubachevskii \paper Third mixed boundary problem for strongly elliptic difference-differential equations \jour Uspekhi Mat. Nauk \yr 2024 \vol 79 \issue 4(478) \pages 175--176 \mathnet{http://mi.mathnet.ru/rm10180} \crossref{https://doi.org/10.4213/rm10180}