%0 Journal Article %A Kubáček, Lubomír %T Weak nonlinearity of growth curve models %J Mathematica slovaca %D 2002 %P 453-468 %V 52 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_2002__52_4_a7/ %G en %F MASLO_2002__52_4_a7