TY - JOUR AU - I. K. Babenko TI - L\"owner's conjecture, the~Besicovitch barrel, and relative systolic geometry JO - Sbornik. Mathematics PY - 2002 SP - 473 EP - 486 VL - 193 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2002_193_4_a0/ LA - en ID - SM_2002_193_4_a0 ER -