The nature of computation : an introduction to computer science 2026-02-16T10:11:19+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Pohl, Ira; Shaw, Alan C. (Computer software engineering series, 1981)