Advanced strength of materials 2026-02-15T22:10:33+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Den Hartog, J. P. (Jacob Pieter), 1901 (Dover books on engineering, 1952)