@article {2138,
	title = {Occurrence and biology of Pseudogonalos hahnii (Spinola, 1840) (Hymenoptera: Trigonalidae) in Fennoscandia and the Baltic states},
	journal = {Entomologica Fennica},
	volume = {29},
	year = {2018},
	pages = { 86-96},
	author = {V{\"a}{\"a}n{\"a}nen, S. and Paukkunen, J. and Soon, V. and Budrys, E.}
}
