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Johny, C. J. and Sarkar, S. K. and Punyasesudu, D. (2009) Atmospheric phenomena deduced from radiosonde and GPS occultation measurements for various application related studies. Journal of Earth System Science , 118 (1). pp. 49-59. ISSN 0973-774X

Sarkar, S. K. and Gupta, M. M. and Ahmad, Iqbal and Johny, C. J. and De, A. K. and Punyaseshudu, D. (2009) Non performance estimation of a microwave communication link due to rain during the monsoon months of 2006 over Kolkata. Indian Journal of Physics , 83 (10). pp. 1385-1394. ISSN 0019-5480