1. Anwendung der Schattenoptik zur Untersuchung des Zerreißvorganges von Platten;Manogg,1964
2. Investigation of the rupture of a plexiglass plate by means of an optical method involving high speed filming of the shadows originating around holes drilling in the plate;Manogg;Int. J. Fracture Mech.,1966
3. Die Lichtablenkung durch eine elastisch beanspruchte Platte und die Schattenfiguren von Kreis-und Rißkerbe;Manogg;Glastechn. Ber.,1966
4. The topography of entirely or locally curved surfaces studied by caustics;Theocaris,1977
5. The method of caustics for the study of singular stress fields;Theocaris,1977