1. Differential equations with maxima. (2011) Other Names: Baĭnov, D (Dimitŭr); Hristova, Snezhana G Record Type: Book Extent: 1 online resource (302 pages), illustrations View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Necessary conditions for an extremum. (2020) Authors: Pshenichnyĭ, B. N (Boris Nikolaevich) Record Type: Book Extent: 1 online resource View Content: Available online (eLD content is only available in our Reading Rooms) ↗