TY  - BOOK
AU  - Berg Christensen
AU  - Ressel Paul
TI  - Harmonic analysis on semigroups: theory of positive definite and related functions
U1  - 515.2433 
PY  - 1984///
CY  - N Y
PB  - Springer Verlag
KW  - Harmonic analysis
KW  - Semigroups
ER  -