TY - SER AU - Chakrabarty,S K . AU - Mazumdar,H P . TI - Bulletin of the Calcutta Mathematical Society (2000) / U1 - 510.5 PY - 2000/// CY - Kolkata : PB - Calcutta Mathematical Society , KW - MATHEMATICS-PERIODICALS N1 - Frequency: Bi-monthly. ISSN: 0008-0659. Abstract journal; Includes bibliographical references ER -