TY - BOOK AU - Guy, Richard K. TI - Unsolved problems in number theory; Unsolved problems in intutive mathematics SN - 0-387-94289-0 U1 - 512.7 PY - 1994/// CY - New York PB - Springer-Verlag KW - Algebra KW - Group theory KW - Number theory N1 - Includes index ER -