TY - JOUR AU - D. Repovš AU - A. B. Skopenkov TI - Obstructions for Seifert fibrations and an extension of the Bolsinov--Fomenko theorem on integrable Hamiltonian systems JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1999 SP - 652 EP - 653 VL - 54 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1999_54_3_a17/ LA - en ID - RM_1999_54_3_a17 ER -