@article {1940,
	title = {[Larvae of the sawfly Ametastegia glabrata Fall. bored into apples in Piikki{\"o}, Finland].},
	journal = {Annales Entomologici Fennici},
	volume = {2},
	year = {1936},
	pages = {108, ref. 109},
	author = {Vappula, N. A.}
}
@article {1939,
	title = {[Sawfly Micronematus monogyniae Htg (Hym., Tenthredinidae) new for Finland].},
	journal = {Annales Entomologici Fennici},
	volume = {23},
	year = {1959},
	pages = {212, ref. 214},
	author = {Vappula, N. A.}
}
@article {1938,
	title = {Omenapisti{\"a}inen (Hoplocampa testudinea Kl. (Hym., Tenthredinidae), maalle uusi omenan tuholainen. (Hoplocampa testudinea Kl., neu f{\"u}r die finnische Fauna).},
	journal = {Annales Entomologici Fennici},
	volume = {25},
	year = {1959},
	pages = {52, ref. 54},
	author = {Vappula, N. A.}
}
