@InProceedings{Urbanowski:2009,
  author      = "K. Urbanowski",
  title       = "Energy of unstable states at long times",
  booktitle   = "Workshop on theoretical physics",
  address     = "Lviv, Ukraina",
  publisher   = "Lviv, [brak wydawcy]",
  pages       = "3998-3 [abstr.]",
  year        = "2009",
}