%0 Journal Article
%A O. V. Gerasimova
%T Rolling simplexes and their commensurability.~II (a~lemma on the directrix and focus)
%J Fundamentalʹnaâ i prikladnaâ matematika
%D 2014
%P 13-19
%V 19
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FPM_2014_19_1_a1/
%G ru
%F FPM_2014_19_1_a1