@UNPUBLISHED{Thomasa,
  author = {Thomas, L.},
  title = {Dealing with complex stratification},
  note = {This is the notes for the lecture with the same name in Distance
	Sampling workshops},
  numero = {33},
  owner = {Tiago},
  paperprinted = {yes},
  subdatabase = {other},
  timestamp = {2007.07.21}
}