@incollection{Welfens1999,
  author    = {Welfens, Maria J.},
  title     = {Input oriented environmental policy as an alternative to end-of-pipe policy : a future agenda for Poland},
  booktitle = {Environmental regulation in transforming economies : the case of Poland},
  editor    = {Jasinski, Piotr},
  publisher = {Ashgate},
  address   = {Aldershot},
  pages     = {110 -- 129},
  year      = {1999},
  language  = {en}
}