%0 Journal Article
%A A. A. Makhnev
%T Strongly regular graphs with nonprincipal eigenvalue 4 and its extensions
%J Trudy Instituta matematiki
%D 2015
%P 82-87
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMB_2015_23_2_a10/
%G ru
%F TIMB_2015_23_2_a10