%0 Journal Article
%A Costantini, Camillo
%T On a problem of Nogura about the product of Fréchet-Urysohn $\langle \alpha_4\rangle$-spaces
%J Commentationes Mathematicae Universitatis Carolinae
%D 1999
%P 537-549
%V 40
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1999__40_3_a12/
%G en
%F CMUC_1999__40_3_a12