TY  - BOOK
AU  - Mergelyan S N
TI  - On a theorem of L A Lavrent'ev
U1  - 510T 
PY  - 1953///
CY  - Providence
PB  - AMS
KW  - Mathematics
N1  - Tr from Doklady Akademi Nauk SSSR (N.S)
ER  -