@book{Cao Long:2008,
author
=
"V.Cao Long and P.Goldstein",
title
=
"A concise course in nonlinear partial differential equations, ISBN: 9788374811859",
publisher
=
"Oficyna Wydawnicza Uniwersytetu Zielonogórskiego",
address
=
"Zielona Góra",
year
=
"2008",
pages
=
"138",
}