@article {2326,
	title = {[The summer excursion of the Entomological Society of Finland to Tv{\"a}rminne 27.-30.VI.1952]},
	journal = {Annales Entomologici Fennici},
	volume = {18},
	year = {1952},
	pages = {204},
	author = {Peltonen, O.}
}
@article {2325,
	title = {[The summer excursion of the Entomological Society of Finland to Ahvenanmaa in 1955]},
	journal = {Annales Entomologici Fennici},
	volume = {22},
	year = {1956},
	pages = {89-92},
	author = {Peltonen, O.}
}
@article {2324,
	title = {[The summer excursion of the Entomological Society of Finland to Virolahti 27.VI.-3.VII.1961]},
	journal = {Annales Entomologici Fennici},
	volume = {28},
	year = {1962},
	pages = {45-47},
	author = {Peltonen, O.}
}
@article {2311,
	title = {[The summer excursion of the Entomological Society of Finland to Ruokolahti and Taipalsaari 2.-6.VII.1975]},
	journal = {Annales Entomologici Fennici},
	volume = {42},
	year = {1976},
	pages = {150-151},
	author = {Peltonen, O.}
}
