1. Maecker, H.: Z. Physik157, 1 (1959);158, 392 (1960)
2. Miyachi, I., JayaRam, K.: Rev. Sci. Inst., vol.42, No. 7, 1002 (1971)
3. JayaRam, K.: Theoretical and experimental investigation of a Copper vapour arc with special reference to the spectral line-widths, Ph.D. Thesis, Dept. of Elec. and Electronic Engg. Nagoya University, Japan, 1971
4. Miyachi, I., JayaRam, K.: J. Phys. B. (Atom and Molec), Ser.2,2 425 (1969)
5. Miyachi, I., JayaRam, K.: Acta Physica Polonica, Vol. A40, Fasc. 4, 527 (1971)