Some Results of the Photometric Observations of Comet Halley P. C. S. DevaraP. Ernest Raj OriginalPaper 01 December 1987 Pages: 93 - 97
Green’s Function of an Integrated Optical Directional Coupler by Plane-Wave-Spectrum Approach T. K. SenA. BasurayA. K. Datta OriginalPaper 01 December 1987 Pages: 98 - 101
Laser Heterodyne System for Atmospheric Studies—Ozone S. L. JainB. C. Arya OriginalPaper 01 December 1987 Pages: 102 - 109
An Instrument for the Inspection of Short Radii Optical Surfaces G. K. SharmaG. P. DimriU. S. Negi Short Communication 01 December 1987 Pages: 110 - 113