@book {532,
	title = {Hymenoptera, Formicidae},
	series = {Insecta Helvetica},
	volume = {6},
	year = {1977},
	pages = {1-298},
	doi = {https://doi.org/10.1002/mmnd.19780250414},
	author = {Kutter, Heinrich}
}
@article {80,
	title = {Einige Ergebnisse weiterer Coptoformica-Studien.},
	journal = {Insectes Sociaux},
	volume = {13},
	year = {1967},
	author = {Kutter, Heinrich}
}
