TY - JOUR AU - Eugene Trubowitz AU - John Garnett TI - Gaps and bands of one dimensional periodic Schrödinger operators, II. JO - Commentarii mathematici Helvetici PY - 1987 SP - 18 EP - 37 VL - 62 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMH_1987__62_140075/ ID - CMH_1987__62_140075 ER -