Elementary differential equations and boundary value problems 2026-02-16T04:41:48+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Boyce, William E.; DIPRIMA, Richard Clyde; Meade, Douglas B. (Wiley, 2022)