TY - JOUR AU - LAU, JOSEPH TI - Free sub-bands of finitely presented bands JO - Glasgow mathematical journal PY - 1999 SP - 145 EP - 150 VL - 41 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089599970659/ DO - 10.1017/S0017089599970659 ID - 10_1017_S0017089599970659 ER -