1. Topological invariants of knots and links;Alexander;Trans. Am. Math. Soc.,1928
2. On types of knotted curves;Alexander;Ann. Math.,1927
3. Tabulating alternating knots through 14 crossings;Arnold;J. Knot Theory Ramificat.,1994
4. A new algorithm for recognizing the unknot;Birman;Geomet. Topol.,1998
5. A Calculus on Links in the 3-Sphere;Birman,1992