%0 Journal Article
%T Super-simple (v, 4, 2) directed designs and a lower bound for the minimum size of their defining set
%A M. Boostan
%A S. Golalizadeh
%A N. Soltankhah
%J Mathematics
%D 2015
%I arXiv
%X In this paper, we show that for all v\pmod 1 (mod 3), there exists a super- simple (v, 4, 2) directed design. Also, we show that for these parameters there exists a super-simple (v, 4, 2) directed design whose each defining set has at least a half of the blocks.
%U http://arxiv.org/abs/1508.00098v1