1. Efficient Light Coupler for Threshold Čerenkov Counters
2. Solar concentrators of a novel design;Winston;Solar Energy,1974
3. Optical and thermal properties of compound parabolic concentrators;Rabl;Argonne Solar Group Report SOL 75-01, published in Solar Energy,1976
4. J. F. Kreider, Performance study of compound parabolic concentrators solar collector. Environmental Consulting Services, Inc., Report 1974 (Phase I) and 1975 (Phase II).