00397nam a2200145Ia 4500 180612s9999||||xx |||||||||||||| ||und|| 122913507 en 512.4 Gordon, Robert. Ring Theory : Proceedings of a Conference on Ring Theory Held in Park City, Utah New York Academic Press 1972 xi, 381 p. PR 40800 40800 0 0 0 0 EUSL EUSL PR 2018-06-12 0 512.4 8335 2018-06-12 00:00:00 2018-06-12 PR