PESHIN, S. K., PANDA, N. C., DEWHARE, J. N. and PEROV, S. P. (2003) “Comparison of Indian ozonesonde and Umkehr profiles at New Delhi 1989-97”, MAUSAM, 54(3), pp. 679–682. doi: 10.54302/mausam.v54i3.1559.