Optische Kennzeichnung von Druckpapieren
By: [von] Otto Schwab [und] Horst-Udo Rapp.
Contributors: Rapp, Horst-Udo, joint author.
Series: Forschungsberichte des Landes Nordrhein-Westfalen,; Nr. 2162
Publisher: Westdeutscher Verlag
Published: 1970
Place of publication: Opladen
Language: ger
Number of pages: 33
Subjects: Paper -- Testing.
Notes: Bibliography: p. 18.