TY  - BOOK
AU  - Lehto,O.
AU  - Virtanen,K.I.
TI  - Quasiconformal mappings in the plane
SN  - 3540033033 :
U1  - 517.8 
PY  - 1973///
CY  - Berlin
PB  - Springer-Verlag
KW  - Mappings (Mathematics)
KW  - Conformal mapping
N1  - Includes index; Bibliography: p. 249-252
ER  -