TY  - BOOK
AU  - CORNELIUS LANCZOS
TI  - LINEAR DIFFERENTIAL OPERATORS
U1  - GN517.382L229L 
PY  - 1961///
CY  - LONDON
PB  - D. VAN NOSTRAND COMPANY LTD
KW  - LINEAR DIFFERENTIAL OPERATORS
N1  - MODERN BOOK HOUSE
ER  -