Investigation of the earth's anomalous magnetic field at the stratospheric altitudes using drifting balloons / Yu. P. Tsvetkov, Kh. D. Kanonidi, A. L. Kharitonov, 1995. - 23 p. - Текст : непосредственный.
The low frequency electromagnetic research in the stratosphere with balloons / Kh.D.Kanonidi,V.G.Kobsev,T.E.Koshelets и др., 1989. - 17 o. - Текст : непосредственный.