YADAV, J. K. S., R. K. GIRI, and D. K. MALIK. 2010. “Effect of Broadcast and Precise Satellite Orbits in the Estimation of Zenith Tropospheric Delay and Integrated Precipitable Water Vapour from GPS”. MAUSAM 61 (2):197-202. https://doi.org/10.54302/mausam.v61i2.801.