1. Determination of resonance frequencies of stators of polyphase motors;Jordan;Larmbekampfung,1957
2. On the main parameters which determine the noise-level of asynchronous machines;Frohne;Ph.D. Thesis, Technical University of Hannover,1959
3. Eigenfrequenzen des Blechpaketes Von Drehstrommaschinen unter Berucksichtigung des Schwingungsverhaltens der Zahne;Holzmann;ETZ-A,1972
4. Predetermination of sound pressure levels of magnetic noise in medium-induction motors;Erdelyi;Ph.D. Thesis, University of Michigan,1955
5. Vibration modes of stators of induction motors;Erdelyi;ASME Transactions,1957