Concepts of Lower Semicontinuity and Continuous Selections for Convex Valued Multifunctions, 1992, Krzysztof Przesławski , Longin Rybiński , Journal of Approximation Theory, Vol. 68, iss. 3, 262--282, ISSN: 0021-9045, bibliogr. summ.
Kod: CZR-JCR BibTeX (pkt. [?]) DOI: 10.1016/0021-9045(92)90105-W