TY - JOUR AU - K. Lau AU - K. Ziętak TI - A note on linear approximations of matrices JO - Applicationes Mathematicae PY - 1991 SP - 257 EP - 263 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-21-2-257-263/ DO - 10.4064/am-21-2-257-263 LA - en ID - 10_4064_am_21_2_257_263 ER -