@article {22134,
	title = {Phronia matilei n. sp.,  a new fungus gnat from caves in Switzerland (Diptera: Mycetophilidae)},
	journal = {Notulae Entomologicae},
	volume = {52},
	year = {1972},
	pages = {39-40},
	url = {http://www.online-keys.net/sciaroidea/add01/Hackman_1972_Phronia_matilei_sp_n.pdf},
	author = {Hackman, Walter}
}
@article {22132,
	title = {New species of the genus Phronia Winnertz (Diptera, Mycetophilidae) from Eastern Fennoscandia and notes on the synonymies in this genus},
	journal = {Notulae Entomologicae},
	volume = {50},
	year = {1970},
	pages = {41-60},
	author = {Hackman, Walter}
}
