References
- Depp W. A., Holden W. H. T. Circuits for cold cathode glow tubes. Electrical Manufacturing 1949; 44: 92
- Gimson K. F., Crowther G. O. Applications of a new type of cold cathode trigger tube. Electronic Engineering 1957; 29: 462
- Physical Methods of Organic Chemistry I, A. Weisberger. Intarscience Publishers Inc., New York 1940; 40