%0 Journal Article
%A H. Zieschang
%T On the classification of simple systems of paths on a surface of genus~$2$
%J Doklady Akademii Nauk
%D 1963
%P 841-844
%V 152
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_152_4_a19/
%G ru
%F DAN_1963_152_4_a19