%0 Journal Article %A È. S. Shpigelman %T Letter to the editors: ``The boundedness of the infinitely continuable solutions of a system of two differential equations with quadratic right hand sides'' (Differencial'nye Uravnenija \textbf{11} (1975), no.~11, 2019--2026) %J Differencialʹnye uravneniâ %D 1977 %P 1537 %V 13 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_8_a29/ %G ru %F DE_1977_13_8_a29