Bombus (Psithyrus) rupestris (FABRICIUS, 1793)
- Ban-Calefariu, C.M. and Sarospataki M. 2007. Contributions to the knowledge of Bombus and Psithyrus genera (Apoidea: Apidae) in Romania. Travaux du Museum NHN “Grigore Antipa” Vol. L pp. 239–258.
- Bieri, S. 2002. Die Bienen und Wespen des Fürstentums Liechtenstein. Amtlicher Lehrmittelverlag.
- Else, G.R. & Edwards, M. 2018. Handbook of the Bees of the British Isles. Ray Society, London.
- Falk, S. 1991. A review of the scarce and threatened bees, wasps and ants of Great Britain. Research and Survey in Nature Conservation 35: 1-344.
- Rasmont, P. 1983. Catalogue commenté des bourdons de la région Ouest-Paléarctique. Notes fauniques de Gembloux No.7.
- Söderman, G. and Leinonen, R. 2003. Suomen Mesipistiäiset ja niiden uhanalaisuus. Tremex Press Oy, Helsinki.