Raman, C. V., 1888-1970, author.
Reflection of X-Rays with Change of Frequency. Part IV, Rock-Salt / by Sir C.V. Raman and Dr. P. Nilakantan.
X-ray optics.
Nilakantan, P., 1910-
Proceedings of the Indian Academy of Sciences, Section A. Vol.12, No. 2 (1940)