@article{Jesse-Józefczyk:2012,
author
=
"K.Jesse-Józefczyk",
title
=
"Monotonicity and expansion of global secure sets",
journal
=
"Discrete Mathematics",
volume
=
"Vol. 312",
number
=
"no 23",
pages
=
"3451--3456",
year
=
"2012",
}