TY  - BOOK
AU  - Seminar on Trends in Mathematical Modelling, Venice, 13-18, Dec. 1971
AU  - Hawkes, Nigel
TI  - Trends in mathematical modelling: ; proceedings 
U1  - 658.40354 
PY  - 1973///
CY  - Berlin
PB  - Springer-Verlag
ER  -