@article {5950,
	title = {Notes d{\'e}tach{\'e}es sur l{\textquoteright} instinct des Hym{\'e}nopt{\`e}res mellif{\`e}res et ravisseurs.},
	journal = {Annales de la Soci{\'e}t{\'e} Entomologique de FranceAnnales de la Societe Entomologique de France},
	volume = {89},
	year = {1921},
	pages = {329-375.},
	keywords = {Hymenoptera},
	author = {Ferton, C.}
}
@article {4194,
	title = {[Dritter Beitrag zur Erforschung von Thrazien und Mazedonien]. (In Bulgarian)},
	journal = {Travaux de la Soci{\'e}t{\'e} Bulgare des Sciences Naturelles [Trudove Bulgarsko Prirodoizpitatelno Druzhestvo]Travaux de la Soci{\'e}t{\'e} Bulgare des Sciences Naturelles [Trudove Bulgarsko Prirodoizpitatelno Druzhestvo]},
	volume = {9},
	year = {1921},
	pages = {61-86},
	keywords = {Lepidoptera},
	author = {Buresch, I. and Iltcheff, D.}
}
