1. A simple modular wire chamber for use as a RICH photon detector
2. HERA-B Technical Design Report, DESY-PRC 95/01
3. these Proceedings (3rd Int. Workshop on B-Physics at Hadron Machines);Schmidt-Parzefall,1995
4. R. Veenhof, GARFIELD, A drift chamber simulation program. Version 5.05, CERN Program Library, entry W5050.