@InCollection{Krzywicki:2000,
author
=
"A.Krzywicki and T.Nadzieja",
title
=
"Nonlocal elliptic problems",
pages
=
"147--152",
year
=
"2000",
booktitle
=
"Evolution equations : existence, regularity and singularities ",
publisher
=
"Polish Academy of Sciences. Institute of Mathematics",
address
=
"Warszawa",
series
=
"Banach Center Publications, Vol. 52",
}