[1]
. P. K. . JANA 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, pp. 350–354, Apr. 2006.