1. W. Bruns, Die Divisorenklassengruppe der Restklassenringe von Polynomringen nach Determinantenidealen. Revue Roumaine Math. Pures Appl.20, 1109?1111 (1975).
2. W.Bruns, The canonical module of a determinantal ring. In: Commutative Algebra, Durham 1981, R. Y. Sharp, ed., London Math. Soc. Lect. Note Ser.72, 109?120 (1981).
3. W. Bruns, Divisors on varieties of complexes. Math. Ann.264, 53?71 (1983).
4. W.Bruns and U.Vetter, Determinantal rings. LNM1327, Berlin-Heidelberg-New York 1988.
5. A. Conca, Gr�bner bases of ideals of minors of a symmetric matrix. J. Algebra166, 406?421 (1994).