TY - JOUR AU - Alpay, Daniel AU - Bolotnikov, Vladimir TI - On two-sided interpolation for upper triangular matrices JO - The electronic journal of linear algebra PY - 1999-2000 SP - 31 EP - 55 VL - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ELA_1999-2000__6__a3/ LA - en ID - ELA_1999-2000__6__a3 ER -