S.Chmutov, S.Duzhin, J.Mostovoy,
Introduction to Vassiliev Knot invariants.
(a preliminary draft version of a book about Chord Diagrams, 460
PDF file (7 Mgb, version of July 20, 2010)
The Kauffman bracket and the Bollobás-Riordan
polynomial of ribbon graphs. Preprint
gziped Postscript file
Thistlethwaite's theorem for virtual links.
Mutant knots and intersection graphs.