APA
Higgins J. R., . (2004). Completeness and basis properties of sets of special functions. : Cambridge.
Chicago
Higgins J R, . 2004. Completeness and basis properties of sets of special functions. : Cambridge.
Harvard
Higgins J. R., . (2004). Completeness and basis properties of sets of special functions. : Cambridge.
MLA
Higgins J R, . Completeness and basis properties of sets of special functions. : Cambridge. 2004.