PESHIN, S. K., J. K. SHARMA, P. R. . RAO, and S. K. SRIVASTAV. “CHANGES IN SURFACE OZONE AMOUNT AND ITS DIURNAL AND SEASONAL PATTERNS, FROM 1990-95 TO 1996-2000, MEASURED AT NEW DELHI (28° N)”. MAUSAM, vol. 54, no. 4, Oct. 2003, pp. 947-51, doi:10.54302/mausam.v54i4.1607.