1. {4} W. Krull. Theorie der Polynomideale und Eliminationstheorie {Polynomial Ideal Theory and Elimination Theory}. Enzykl. math. Wiss. 2nd ed. Vol. 1 No. 5 1939. {4} W. Krull. Theorie der Polynomideale und Eliminationstheorie {Polynomial Ideal Theory and Elimination Theory} . Enzykl. math. Wiss. 2nd ed. Vol. 1 No. 5 1939.
2. Beweis und Versch�rfung eines Satzes von Kronecker