TY  - BOOK
AU  - Olsen Oystein
AU  -  Roland Kjell
TI  - Modeling demand for natural gas:  A review of vario   
T2  - Social economic studies .67
U1  - X9(F558):73:(B).573.N8, M8 
PY  - 1988///
CY  - Oslo
PB  - Statistisk Sentra Ibyra        
KW  - Gas Industry
ER  -