1. Gupta, B. M. (ed.) Handbook of Libraries, Archives and Information Centres in India Vol. 13 (Segment, New Delhi, 1996).
2. Papon, P. & Barre, R. in World Science Report (ed. Moore, H.) 8–23 (UNESCO, Paris, 1996).
3. Arunachalam, S. J. Sci. Ind. Res. 51, 99–119 (1992).
4. Braun, T. et al. Scientometrics 33, 262–293 (1995); 29, 299–344 (1994); 13, 181–188 (1988).
5. Maddox, J. & Jayaraman, K. S. Nature 366, 611–627 (1993).