%0 Journal Article %A Ráb, Miloš %T Equation $Z'=A(t)-Z^2$ coefficient of which has a small modulus %J Czechoslovak Mathematical Journal %D 1971 %P 311-317 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101023/ %R 10.21136/CMJ.1971.101023 %G en %F 10_21136_CMJ_1971_101023