- Meeting in Israel on Optical Engineering (3)
- Shladov, Itzhak (3)
- Society of Photo-optical Instrumentation Engineers (3)
- Weissman, Yitzhak (3)
- Association of Engineers and Architects in Israel (2)
- Oron, Moshe (2)
- Kopeika, Norman S. (1)
- Lishkat ha-mehandesim, ha-adrikhalim ṿeha-aḳademaʾim ba-miḳtsoʿot ha-ṭekhnologiyim be-Yiśraʾel (1)