TY - JOUR AU - Benavides, Tomás Domínguez AU - Falset, jesús García AU - Japón Pineda, Maria A. PY - 1998 DA - 19/01/01 TI - The τ SP - 123929 VL -3 AB - SN - 1085-3375 UR - https://doi.org/10.1155/S1085337598000591 DO - 10.1155/S1085337598000591 JF - Abstract and Applied Analysis