TY - JOUR AU - D. V. Bolotov TI - Foliations of nonnegative curvature on closed 3-dimensional manifolds JO - Sbornik. Mathematics PY - 2009 SP - 313 EP - 324 VL - 200 IS - 3 UR - http://geodesic.mathdoc.fr/item/SM_2009_200_3_a0/ LA - en ID - SM_2009_200_3_a0 ER -