TY - JOUR AU - O. A. Ladyzhenskaya TI - Example of nonuniqueness in the Hopf class of weak solutions for the Navier--Stokes equations JO - Izvestiya. Mathematics PY - 1969 SP - 229 EP - 236 VL - 3 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1969_3_1_a13/ LA - en ID - IM2_1969_3_1_a13 ER -