Digital signal processing 2026-02-15T21:47:37+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Proakis, John G; Manolakis, Dimitris G. (Pearson Prentice Hall, 2014)