Maximum and anti-maximum principles for the general operator of second order with variable coefficients. - Irina V. Barteneva; Alberto Cabada; Alexander O. Ignatyev (Appl. Math. Comput., 2003)

Ground-Based Microwave Measurements of Mesospheric Ozone Variations over Moscow Region during the Solar Eclipses of 20 March 2015 and 25 October 2022. - Sergey B. Rozanov; Alexander O. Ignatyev; Alexey S. Zavgorodniy (Remote. Sens., 2023)