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vls/2603nrwcece.visuallibrary.netvdIntroduction to differential equations with boundary value problemsDerrick, William R.autGrossman, Stanley I.auttextbookSt. PaulWest Publ. Co.19873. ed.monographic554, A70 S.0-314-26897-9HT004610360Derrick, William R.: Elementary differential equations with applicationsBis361QC470 D438(3)19931220078418401 https://ce.visuallibrary.net//domainresource/static/graphics/connectors/viewerLogo.gif http://193.30.112.129:83/F/?func=find-c&ccl_term=ICS%3D078418401+X0001 https://ce.visuallibrary.net/id/115995 https://ce.visuallibrary.net/i3f/v20/115995/manifest https://ce.visuallibrary.net/proto_ftsearch/115995