TY - JOUR AU - D. Bar-Natan TI - A note on the unitarity property of the Gassner invarian JO - Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika PY - 2015 SP - 22 EP - 25 IS - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VCHGU_2015_17_a2/ LA - en ID - VCHGU_2015_17_a2 ER -