TY - JOUR AU - A. I. Aptekarev TI - Strong asymptotics of multiply orthogonal polynomials for Nikishin systems JO - Sbornik. Mathematics PY - 1999 SP - 631 EP - 669 VL - 190 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1999_190_5_a0/ LA - en ID - SM_1999_190_5_a0 ER -