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Rao, V. R. ; Kulkarni, P. V. ; Ramanathan, K. R. (1973) Ozone and airglow in the mesosphere region Pure and Applied Geophysics (PAGEOPH), 106 (1). pp. 1318-1324. ISSN 0033-4553

Sharma, D. P. ; Jain, A. K. ; Chakravarty, S. C. ; Kasturirangan, K. ; Ramanathan, K. R. ; Rao, U. R. (1972) Possibility of continuous monitoring of celestial X-ray sources through their ionization effects in the nocturnal D-region ionosphere Astrophysics and Space Science, 17 (2). pp. 409-425. ISSN 0004-640X

Chakravarty, S. C. ; Ramanathan, K. R. (1972) A comparison of field-strengths of 164 kHz radio waves transmitted from Tashkent and received at Ahmedabad with flare-time solar X-ray emissions measured in satellites Proceedings of the Indian Academy of Sciences, Section A, 75 (6). pp. 249-261. ISSN 0370-0089

Ananthakrishnan, S. ; Chakravarty, S. C. ; Ramanathan, K. R. (1970) Ionospheric effects of X-rays from scorpio X-1 and taurus X-1 (CRAB) Proceedings of the Indian Academy of Sciences, Section A, 71 (2). pp. 69-81. ISSN 0370-0089

Abdu, M. A. ; Degaonkar, S. S. ; Ramanathan, K. R. (1967) Attenuation of galactic radio noise at 25 Mhz and 21.3 Mhz in the ionosphere over Ahmedabad during 1957-1964 Journal of Geophysical Research, 72 (5). pp. 1547-1554. ISSN 0148-0227

Ananthakrishnan, S. ; Ramanathan, K. R. (1967) Delayed effects of sudden ionospheric disturbances on 164 Kc/s transmission between Tashkent and Ahmedabad Proceedings of the Indian Academy of Sciences, Section A, 65 (1). pp. 38-44. ISSN 0370-0089

Ananthakrishnan, S. ; Ramanathan, K. R. (1967) Field strengths of 164 kHz radio-waves received at Ahmedabad from Tashkent in 1960-65 and effect of solar X-ray emissions Proceedings of the Indian Academy of Sciences, Section A, 66 (1). pp. 60-68. ISSN 0370-0089

Ramanathan, K. R. (1963) Bi-annual variation of atmospheric ozone over the tropics Quarterly Journal of the Royal Meteorological Society, 89 (382). pp. 540-542. ISSN 0035-9009

Ramanathan, K. R. ; Bhonsle, R. V. ; Degaonkar, S. S. (1961) Effect of electron-ion collisions in the F region of the ionosphere on the absorption of cosmic radio noise at 25 Mc/s at Ahmedabad changes in absorption associated with magnetic storms Journal of Geophysical Research, 66 (9). pp. 2763-2771. ISSN 0148-0227

Bhonsle, R. V. ; Ramanathan, K. R. (1960) Magnetic storms and cosmic radio noise on 25 Mc/s at Ahmedabad (23° 02' N; 72° 38'E) Planetary and Space Science, 2 (2-3). pp. 99-103. ISSN 0032-0633

Ramanathan, K. R. ; Kulkarni, R. N. (1960) Mean meridional distributions of ozone in different seasons calculated from Umkehr observations and probable vertical transport mechanisms Quarterly Journal of the Royal Meteorological Society, 86 (368). pp. 144-155. ISSN 0035-9009

Ramanathan, K. R. ; Bhonsle, R. V. (1959) Cosmic radio noise absorption on 25 MC/S and F scatter Journal of Geophysical Research, 64 (10). pp. 1635-1637. ISSN 0148-0227

Kotadia, K. M. ; Ramanathan, K. R. (1956) Variation with lunar phase of midday critical frequencies and heights of the F2 layer over Ahmedabad and other low latitude stations Proceedings of the Indian Academy of Sciences, Section A, 43 (6). pp. 394-399. ISSN 0370-0089

Ramanathan, K. R. ; Bhonsle, R. V. ; Kotadia, K. M. ; Rastogi, R. G. (1956) The great solar flare of February 23, 1956 and associated ionospheric effects at Ahmedabad Proceedings of the Indian Academy of Sciences, Section A, 43 (5). pp. 306-308. ISSN 0370-0089

Ramanathan, K. R. ; Ramana Murthy, BH. V. (1953) Daily variation of amount of ozone in the atmosphere Nature, 172 . pp. 633-634. ISSN 0028-0836

Ramanathan, K. R. ; Kulkarni, R. N. (1953) Height distribution of atmospheric ozone Proceedings of the Indian Academy of Sciences, Section A, 37 (2). pp. 321-331. ISSN 0370-0089

Ramanathan, K. R. ; Karandikar, R. V. (1949) Effect of dust and haze on measurements of atmospheric ozone made with Dobson's spectrophotometer Quarterly Journal of the Royal Meteorological Society, 75 (325). pp. 257-267. ISSN 0035-9009

Karandikar, R. V. ; Ramanathan, K. R. (1949) Vertical distribution of atmospheric ozone in low latitudes Proceedings of the Indian Academy of Sciences, Section A, 29 (5). pp. 330-348. ISSN 0370-0089

Ramanathan, K. R. (1937) Effect of near lightning discharges on a magnetometer Nature, 140 . p. 587. ISSN 0028-0836

Ramanathan, K. R. ; Ramdas, L. A. (1934) The transparency of the atmosphere in the ultra-violet and a possible means of extending the solar spectrum in the regions 2200-2000 Å Proceedings of the Indian Academy of Sciences, Section A, 1 (5). pp. 308-314. ISSN 0370-0089