1. Babu, A., 1988. Heterogeneity of heterochromatin of human chromosomes as demonstrated by restriction endonuclease treatment. Heterochromatin: Molecular and structural aspects. Edited by R. S. Verma, Cambridge Univ Press, pp. 250?275.
2. Babu, A. & Verma, R. S., 1986. The heteromorphic marker on chromosome 18 using restriction endonuclease AluI. Am. J. Hum. Genet. 38: 549?554.
3. Babu, A., Agarwal, A. K. & Verma, R. S., 1988. A new approach in recognition of heterochromatic regions of human chromosomes by means of restriction endonucleases. Am. J. Hum. Genet. 42: 60?65.
4. Babu, A., Verma, R. S. & Patil, S. R., 1987. AluI resistant chromatin on chromosome 18: classification, frequencies and implications. Chromosoma 95: 163?166.
5. Bianchi, N. O., Bianchi, M. S. & Cleaver, J. E., 1984. The action of ultraviolet light on the patterns of banding induced by restriction endonucleases in human chromosomes. Chromosoma 90: 133?138.