G.S. Bochkarev, “Influence of the ionosphere, modified by powerful oblique radiowaves, on HF radio wave propagation”, Journal of Atmospheric and Solar-Terrestrial Physics, 59, № 18, 1997, 2295
H Rothkaehl, Z Kłos, “Broadband hf emissions as an indicator of global changes within the ionosphere”, Advances in Space Research, 31, № 5, 2003, 1371
H. Rothkaehl, M. Parrot, “Electromagnetic emissions detected in the topside ionosphere related to the human activity”, Journal of Atmospheric and Solar-Terrestrial Physics, 67, № 8-9, 2005, 821
V.N. Oraevsky, S.A. Pulinets, N.I. Bud'ko, I.S. Prutensky, V.V. Vas'kov, Z. Klos, A. Kiraga, H. Rothkaehl, Z. Zbyszyński, G.P. Komrakov, “Emissions stimulated in the upper ionosphere by the SURA heating facility”, Advances in Space Research, 21, № 5, 1998, 671
S.I. Klimov, V.Ye. Korepanov, “The «Obstanovka» experiment aboard the International Space Station”, Kosm. nauka tehnol., 10, № 2-3, 2004, 81