1. Bar-Natan D Bibliography of Vassiliev invariants, http://www.math.toronto.edu/∼drorbn/VasBib.
2. On associators and the Grothendieck–Teichmuller group I;Bar-Natan;Selecta Mathematica,1998
3. Bar-Natan D and Thurston D Algebraic Structures on knotted objects and universal finite type invariants (in prepartion), http://www.math.toronto.edu/∼drorbn/papers/AlgebraicStructures.
4. Quasi-Hopf algebras;Drinfel’d;Leningrad Mathematical Journal,1990
5. On quasitriangular Quasi-Hopf algebras and a group closely connected with GalQ/Q;Drinfel’d;Leningrad Mathematical Journal,1991