TY  - BOOK
AU  - Burago Yu. D
TI  - Isoperimetric inequalities in the thoery of surfaces of bounded external curvature
T2  - Seminar in Mathematics; Vol 10
U1  - B6, L0 
PY  - 1970///
CY  - New York    
PB  -  Consultanta Bureau       
ER  -