Krelle, Wilhelm. Lineare Programmierung/ [von] Wilhelm Krelle und Hans Paul Künzi. - Zürich: Verlag Industrielle Organisation, [c1958]. - 121 p.: illus., 24 cm. Includes bibliography. LCCN: 60030006 /L Subjects--Topical Terms: Linear programming. Dewey Class. No.: 519.92 / K92l