%0 Journal Article %A P. E. Krasnushkin %T Diurnal and seasonal oscillations of a faraway field of long radiowaves %J Doklady Akademii Nauk %D 1961 %P 783-786 %V 140 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_140_4_a12/ %G ru %F DAN_1961_140_4_a12