HORODETS’KYI, V. V.; MARTYNYUK, O. V.; PETRYSHYN, R. I. Nonlocal multipoint (in time) problem for evolutionary pseudodifferential equations with analytic symbols in spaces of type $W$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 9, p. 1208–1226, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1510. Acesso em: 5 dec. 2025.