A course in ordinary differential equations 2026-02-16T10:05:16+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Swift, Randall J.; Wirkus, Stephen Allen, 1971 (Chapman & Hall/CRC, 2007)