海量图书期刊资源，随时随地畅享阅读乐趣
Model approximation of cosmic ray spectrumM. Buchvarova; P.I.Y. Velinov; I. Buchvarov · 2011
Modeling spectra of cosmic rays influencing on the ionospheres of the earth and outer planets during solar maximum and minimumM. Buchvarova; P.I.Y. Velinov · 2005