1. Einige Grundbedingungen und Moglichkeiten fur die automatische Regelung stufenloser Getriebe in Schleppern;Coenenberg;Landtech. Forsch.,1964
2. System/360 Continuous System Modeling Program Users' Manual. IBM Application Program H20-0240-2
3. Control Systems Theory;Elgerd,1967
4. Non-linear Automatic Control;Gibson,1963
5. Automatic Control Systems Engineering;Langill,1965