%0 Journal Article %A V. Ya. Yakubov %T Differential equations whose solution of the Cauchy problem displays nonclassical behaviour with respect to the parameter~$\lambda$ %J Sbornik. Mathematics %D 2009 %P 1565-1574 %V 200 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2009_200_10_a7/ %G en %F SM_2009_200_10_a7