List of Publications Starting from 1996 . ... Grechnev V.V., A.M. Uralov, . I.V. Kuzmenko, A.A. Kochanov, I.M. Chertok, S.S. Kalashnikov. ... Solar Phys ., ... Chertok I.M., Abunina M.A., Abunin A.A., Belov A.V., Grechnev, V.V. Relationship between the Magnetic Flux of Solar Eruptions and the Ap index of Geomagnetic Storms. ... Chertok I.M., Belov A.V., Grechnev, V.V. A Simple Way to Estimate the Soft X-ray Class of Far-Side Solar Flares Observed with STEREO/EUVI. ... Chertok I.M, V.V. Grechnev. ...