@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",
}