The Diptera fauna of New Zealand as a problem in systematics and zoogeographyWilli Hennig · First published 1966Open the Tome
Grundzu ge einer Theorie der phylogenetischen SystematikWilli Hennig · First published 1950Open the Tome
Beiträge zur Kenntnis des Kopulationsapparates der cyclorrhaphen Dipteren ..Willi Hennig · First published 1936Open the Tome