S. N. Kotelnikov, E. V. Stepanov and S. G. Kasoev (2021) “Estimation of Ground-level Ozone as a Risk Factor for Crop Production in Central Regions of the Russian Federation”, Modern Advances in Geography, Environment and Earth Sciences Vol. 7, pp. 24–30. doi: 10.9734/bpi/magees/v7/13792D.