V. H. Komendant, N. I. Koshkin, M. I. Ryabov, і A. L. Sukharev, «THE CHANGE INDICES OF SOLAR AND GEOMAGNETIC ACTIVITY AND THEIR INFLUENCE ON THE DINAMICS OF DRAG OF ARTIFICIAL SATELLITE», Одес. астроном. публ., т. 29, с. 207–210, Груд 2016.