@InProceedings{Trippenbach:2003,
  author      = "M. Trippenbach and V. Cao Long and S. Vu Ngoc and B. Nguyen Huy",
  title       = "Bragg scatering of Bose-Einstein condensates and Imaginary time method",
  booktitle   = "28th National Conference on Theoretical Physics",
  address     = "Sam Son, Wietnam",
  publisher   = "Hanoi, [brak wydawcy]",
  pages       = "198--203",
  organization = "Vietnam Physical Society",
  year        = "2003",
}