TY - BOOK AU - Richeson, D.S TI - Euler's gem: The polyhedron formula and the birth of topology SN - 9780691126777 U1 - 515.12 PY - 2008/// CY - William street PB - Princeton KW - EULER'S GEM KW - KNOTTY PROBLEM KW - POLYHEDRA KW - TOPOLOGY-HISTORY ER -