%0 Journal Article %A A. E. Arbuzov %A F. G. Valitova %A A. V. Il'yasov %A B. M. Kozyrev %A Yu. V. Yablokov %T Electron spin resonance in the solutions of certain free radicals of the phosphonohydrazyl series %J Doklady Akademii Nauk %D 1962 %P 839-842 %V 147 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_147_4_a25/ %G ru %F DAN_1962_147_4_a25