On the existence of a bounded solution of a non-linear differential equation M. Jakubičková (1968) Archivum Mathematicum Similarity:
Existence of solutions of the Darboux problem for partial differential equations in Banach spaces Bogdan Rzepecki (1987) Commentationes Mathematicae Universitatis Carolinae Similarity:
Integral of multivalued mappings and its connection with differential relations Jiří Jarník, Jaroslav Kurzweil (1983) Časopis pro pěstování matematiky Similarity: