Dejan Raca, Pablo García, David Reigosa, Fernando Briz, Robert D. Lorenz. Carrier Signal Selection for Sensorless Control of PM Synchronous Machines at Zero and Very Low Speeds. In Industry Applications Society Annual Meeting, IAS 2008, Edmonton, Alberta, Canada, 5-9 Octobert, 2008. pages 1-8, IEEE, 2008. [doi]