@article {82,
	title = {Herhil{\"a}isen uusi tuleminen},
	journal = {Luonnon Tutkija},
	volume = {107},
	year = {2004},
	pages = {168-176},
	keywords = {Aculeata, Vespa, Vespa crabro, Vespidae},
	author = {Ter{\"a}s, I. and Jantunen, J. and Pekkarinen, A. and Saarinen, K. and Sorjonen, J.}
}
@article {80,
	title = {Mesipisti{\"a}iset {\textendash} kasviemme t{\"a}rkeimm{\"a}t p{\"o}lytt{\"a}j{\"a}hy{\"o}nteiset.},
	journal = {Luonnon Tutkija},
	volume = {102},
	year = {1998},
	pages = {88-102},
	keywords = {Aculeata, Apoidea},
	author = {Pekkarinen, A. and Ter{\"a}s, I.}
}
@article {72,
	title = {Tuoksut kimalaisten el{\"a}m{\"a}ss{\"a} (Odours in the life of bumblebees).},
	journal = {Luonnon Tutkija},
	volume = {94},
	year = {1990},
	pages = {204-211},
	keywords = {Aculeata, Apidae, Bombus},
	author = {Ter{\"a}s, I.}
}
@article {71,
	title = {Suomen myrkkypisti{\"a}islajien taantuminen ja uhanalaisuus (The endangered bees, wasps and ants (Hymenoptera, Aculeata) in Finland). },
	journal = {Luonnon Tutkija},
	volume = {91},
	year = {1987},
	pages = {124-129},
	keywords = {Aculeata},
	author = {Pekkarinen, A. and Ter{\"a}s, I. and Wuorenrinne, H.}
}
@article {69,
	title = { Kukka ja kimalainen {\textendash} optimaalista ravinnonhankintaa? (Do bumblebees for-age optimally?).},
	journal = {Luonnon Tutkija},
	volume = {89},
	year = {1985},
	pages = {4-11},
	keywords = {Aculeata, Apidae, Bombus},
	author = {Ter{\"a}s, I.}
}
@article {62,
	title = {Suomen kimalaisista ja loiskimalaisista (On Finnish bumblebees and cuckoo bumblebees (Apidae))},
	journal = {Luonnon Tutkija},
	volume = {81},
	year = {1977},
	pages = {1-24},
	keywords = {Aculeata, Apidae, Bombus, pdf},
	author = {Pekkarinen, A. and Ter{\"a}s, I.}
}
