Fundamentals of structural mechanics 2026-02-12T05:52:16+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Hjelmstad, Keith D. (Prentice-Hall international series in civil engineering and engineering mechanics, 2005)