Print version: AMS Special Session on Physical Knotting and Unknotting. Physical knots : knotting, linking, and folding geometric objects in R: AMS Special Session on Physical Knotting and Unknotting, Las Vegas, Nevada, April 21-22, 2001. Providence, Rhode Island : American Mathematical Society, [2002] xi, 340 pages ; 26 cm. Contemporary mathematics ; 304 ISBN 9780821832004