TY - BOOK AU - Gruber, Bruno. Ed. AU - Biedenharn, L C. Ed. AU - Doebner, H D. Ed. TI - Symmetries in Science V Algebraic Systems, Their Representations, Realizations, and Physical Applications: Proceedings, Austria, 1990 SN - 0 306 43895 X CY - New York KW - Algebra, Abstract - Congresses ER -