Fitzgerald, S.J., 2019. The Nearctic species of Grzegorzekia Edwards (Diptera: Mycetophilidae). Zootaxa, 4623(3), pp.163?174. Available at: https://biotaxa.org/Zootaxa/article/view/zootaxa.4623.1.11.

Chandler, P.J., 2015. A new species of Grzegorzekia Edwards (Diptera: Mycetophilidae) from England and France. Entomologist's Gazette, 66, pp.53-60.

Søli, G. & Rindal, E., 2012. Fungus gnats (Diptera, Mycetophilidae) from Finnmark, northern Norway. Norwegian Journal of Entomology, 59(2), pp.158?181.

Papp, L. & ?ev?ík, J., 2007. Grzegorzekia hungarica sp. n. and new records of European Mycetophilidae and Bolitophilidae (Diptera). Acta Zoologica Universitatis Comenianae, 47(2), pp.187-193. Available at: http://zoology.fns.uniba.sk/acta/interface/09260-Papp-Sevcik-2007.pdf.

Jakovlev, J., Kjærandsen, J. & Viklund, B., 2008. Fungus gnats (Diptera: Bolitophilidae, Diadocidiidae, Ditomyiidae, Keroplatidae & Mycetophilidae) from Tyresta National Park and Nature Reserve in Sweden. Sahlbergia , 14(1), pp.29-52. Available at: http://www.online-keys.net/sciaroidea/add01/Jakovlev_al_2008_fungus_gnats_from_tyresta.pdf.

Kjærandsen, J. & Jordal, J.Bjarne, 2007. Fungus gnats (Diptera: Bolitophilidae, Diadocidiidae, Ditomyiidae, Keroplatidae and Mycetophilidae) from Møre og Romsdal. Norwegian Journal of Entomology, 54(2), pp.147-171.

Kjærandsen, J. et al., 2007. Annotated checklist of fungus gnats from Sweden (Diptera: Bolitophilidae, Diadocidiidae, Ditomyiidae, Keroplatidae and Mycetophilidae). Insect Systematics and Evolution Supplements, 65, pp.1?128. Available at: http://www.online-keys.net/sciaroidea/add01/Kjerandsen_et_al_2007_Checklist_Sweden.pdf.

Matile, L., 1977. Notes sur les Mycetophilidae (Diptera) de la faune de France. 4. Le genre Bolitophila. 1. Sous-genre Bolitophila s. str. (suite et fin). Entomologiste, 33, p.17[long dash]22, illust.

Bechev, D.N., 1990. Review of the Holarctic species of genus Polylepta Winnertz (Insecta, Diptera: Mycetophilidae). ENTOMOLOGISCHE ABHANDLUNGEN (DRESDEN), 53, pp.179-184. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1990_Polylepta_Holartic.pdf.

Parvu, C., 2002. Fungus-gnats (Diptera: Mycetophilidae) from maramures depression, at first mention in Romania. Travaux du Museum National d'Histoire Naturelle "Grigore Antipa", 44:, pp.261-265.

Vaisanen, R., 1984. A new Mediterranean species of Grzegorzekia (Diptera, Mycetophilidae).

Edwards, F.Wallace, 1924. Notes on Meigen's fungus-gnat types. Encyclopédie entomologique. Série B. Mémoires et notes, 2?, pp.13-17.

Plassmann, E., 1972. Die Piltzmückengattung Neoempheria (Diptera: Fungivoridae). Senckenbergiana Biologica, 53(3/4), pp.239-244.

?ev?ík, J. & Papp, L., 2001. Bolitophilidae and Mycetophilidae (Diptera): genera and species new to Hungary. Folia Entomologica Hungarica, 62, pp.217-229.

Plassmann, E. & Zaenker, S., 2005. Eine erste Bestandaufnahme der Pilzmuecken Hessens (Diptera Sciaroidea: Ditomyiidae, Bolitophilidae, Diadocidiidae, Keroplatidae, Mycetophilidae). Entomofauna, 26, pp.17-26.

Kurina, O. et al., 2005. Fungus gnats (Diptera: Sciaroidea excl. Sciaridae) in the Swedish boreonemoral forests. Studia Dipterologica, 11, pp.471-488.

Plassmann, E., 1979. Pilzmucken aus Messaure in Schweden. 2. Luftstrom-Fallenfange (Insecta: Diptera: Mycetophilidae). SENCKENBERGIANA BIOLOGICA, 59, pp.371-388.

Zaitzev, A.I., 1993. New data on Nearctic fungus gnats (Diptera, Mycetophiloidea). Vestnik Zoologii, 2, pp.34-39, illustr.