JANA , . P. K. ., and S. C. . NANDI. “DEPLETION OF OZONE AND ITS EFFECT ON NIGHT AIRGLOW INTENSITY OF Na 5893 A° AT TRIVANDRUM (8.25° N, 76.9° E) AND HALLEY BAY (76° S, 27° W)”. MAUSAM, vol. 57, no. 2, Apr. 2006, pp. 350-4, doi:10.54302/mausam.v57i2.512.