1. Method of flux control in induction motors driven by variable frequency, variable voltage supplies;Abbondanti,1977
2. Die geregelte doppeltgespeiste Asynchronmaschine als drehzahlvariabler Generator am Netz;Albrecht;Diss. TU Braunschweig,1984
3. Microcomputer control of a variable speed double-fed induction generator operating on the fixed frequency grid;Albrecht,1982
4. Das Prinzip der Feldorientierung, die Grundlage für die TRANSVEKTOR-Regelung von Asynchronmaschinen;Blaschke;Siemens-Zeitschr.,1971
5. The principle of field orientation as applied to the new TRANSVECTOR closed-loop control system for rotating field machines;Blaschke;Siemens Rev.,1972