1. Letter-of-Intent to the ISR-Committee;Schlein;CERN/ISRC/71-45,1971
2. Multiwire proportional chamber spectrometer for the CERN intersecting storage rings
3. T.M. Taylor, Analyzing Magnet with Field-Free Channel for Use in the ISR; CERN ISR-MA/74-43.
4. P. Chauvat et al. (R608 Collaboration), The Performance of a 16 000 Wire Mini-Drift MWPC System; Proc. 1983 DPF Workshop on Collider Detectors (LBL-15973) p. 81 and CERN-EP/82-198.