[2]Arhivirana inačica izvorne stranice od 9. travnja 2016. (Wayback Machine) "Design and Analysis of a Novel Low Loss Homopolar Electrodynamic Bearing." Lembke Torbjörn, Stockholm: Universitetsservice US AB, 2005.
[2]Arhivirana inačica izvorne stranice od 9. travnja 2016. (Wayback Machine) "Design and Analysis of a Novel Low Loss Homopolar Electrodynamic Bearing." Lembke Torbjörn, Stockholm: Universitetsservice US AB, 2005.