Mazurkin Matveevich, Yana Georgieva. CHANGE OF EASTERN LONGITUDE AT THE POINTS OF THE CHANNEL OF A SMALL RIVER ON SPACE IMAGES. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Informatics, Geoinformatics and Remote Sensing, 2020, pp. 319-328. https://doi.org/10.5593/sgem2020/2.2/s11.038