[4]Архивирано 2012-05-25 на сајту Archive.today Seminar at KTH – the Royal Institute of Technology, Stockholm, 2010.
kth.se
[3]Архивирано на сајту Wayback Machine (8. јун 2011) "3D-FEM Analysis of a Low Loss Homopolar Induction Bearing" Lembke Torbjörn, 9th International Symposium on Magnetic Bearings, 2004.
[4]Архивирано 2012-05-25 на сајту Archive.today Seminar at KTH – the Royal Institute of Technology, Stockholm, 2010.
magnetal.se
[2] "Design and Analysis of a Novel Low Loss Homopolar Electrodynamic Bearing." Lembke Torbjörn, Stockholm: Universitetsservice US AB, 2005.
[3]Архивирано на сајту Wayback Machine (8. јун 2011) "3D-FEM Analysis of a Low Loss Homopolar Induction Bearing" Lembke Torbjörn, 9th International Symposium on Magnetic Bearings, 2004.