@article {2310,
	title = {[Caliroa cerasi L. (Hym., Tenthredinidae), reared females]},
	journal = {Annales Entomologici Fennici},
	volume = {29},
	year = {1963},
	pages = {70, ref. 72},
	author = {Perki{\"o}m{\"a}ki, J.}
}
@article {2309,
	title = {[The summer excursion of the Entomological Society of Finland to Karjalohja 30.V.-2.VI.1964]},
	journal = {Annales Entomologici Fennici},
	volume = {31},
	year = {1965},
	pages = {270},
	author = {Perki{\"o}m{\"a}ki, J.}
}
@article {2308,
	title = {[Pristiphora robusta (Knw.) (Hym., Tenthredinidae)]},
	journal = {Annales Entomologici Fennici},
	volume = {35},
	year = {1969},
	pages = {60, ref. 62},
	author = {Perki{\"o}m{\"a}ki, J.}
}
@article {2307,
	title = {Auch die Zwergbirke (Betula nana L.) ist Nahrungspflanze von Blattwespenlarven (Hym., Tenthredinoidea)},
	journal = {Annales Entomologici Fennici},
	volume = {37},
	year = {1971},
	pages = {208},
	author = {Perki{\"o}m{\"a}ki, J.}
}
@article {1498,
	title = {Patrocloides regius (Hell{\'e}n, 1951), an extinct species in Finnish fauna? (Hymenoptera, Ichneumonidae: Ichneumoninae).},
	journal = {Sahlbergia},
	volume = {11},
	year = {2006},
	pages = {14-20},
	author = {Vikberg, V. and Perki{\"o}m{\"a}ki, J.}
}
@article {1116,
	title = {Discoelius dufourii Lepeletier (Hymenoptera, Eumenidae) in eastern Fennoscandia.},
	journal = {Notulae Entomologicae},
	volume = {66},
	year = {1986},
	pages = {45{\textendash}48},
	author = {Perki{\"o}m{\"a}ki, J. and Pekkarinen, A.}
}
@article {1115,
	title = {Drei f{\"u}r die Fauna Finnlands neue Grabwespen (Hym., Sphecidae)},
	journal = {Annales Entomologici Fennici},
	volume = {37},
	year = {1971},
	pages = {208-209},
	author = {Perki{\"o}m{\"a}ki, J.}
}
@article {1110,
	title = {Ancistrocerus gazella (Panzer) {\textendash}erakkoampiainen(Hymenoptera, Eumenidae) l{\"o}ydetty Suomelle uutena Ahvenanmaalta},
	journal = {Notulae Entomologicae},
	volume = {67},
	year = {1987},
	pages = {207},
	author = {Pekkarinen, A. and Perki{\"o}m{\"a}ki, J.}
}
@article {1109,
	title = {Laajentavatko Bombus subterraneus ja B. sylvarum (Hymenoptera, Apidae) edelleen esiintymisaluettaan Suomessa? },
	journal = {Notulae Entomologicae},
	volume = {64},
	year = {1984},
	pages = {196},
	author = {Pekkarinen, A. and Perki{\"o}m{\"a}ki, J.}
}
