@article{Cegielski:2009,
author
=
"A.Cegielski and C.Grossmann",
title
=
"Properties of projection and penalty methods for discretized elliptic control problems",
journal
=
"Discussiones Mathematicae Differential Inclusions Control and Optimization",
volume
=
"Vol. 27",
number
=
"no 1",
pages
=
"23--41",
year
=
"2007",
}