TY - BOOK AU - Higgins,J.R. TI - Completeness and basis properties of sets of special functions T2 - Cambridge tracts in mathematics0 521 60488 5 SN - 0 521 60488 5 U1 - 515.5 HIG PY - 1977/// CY - Cambridge PB - Cambridge University Press N1 - Includes bibliographical references ER -