1. Feinberg, R., and Chen, W.Y.: Commutation phenomena in a static power convertor, (see p. 125)
2. Chen, W.Y.: ‘An investigation of commutation problems in a static power convertor’, 1962, Ph.D. Thesis, Manchester University
3. ‘Recommendations for mercury-arc convertors’, I.E.C. Publication 84, 1957
4. ‘Mercury arc rectifier equipment’, BS 1698, 1950