Parvathamma, N., S. R. Gunjal, and R. Nijagunappa. “Growth Pattern of Literature and Scientific Productivity of Authors in Indian Earth Science (1978-88): A Bibliometric Study”. Journal of Information and Knowledge, vol. 30, no. 2, June 1993, pp. 54-64, doi:10.17821/srels/1993/v30i2/49128.