TY  - BOOK
AU  - Velsen,J.F.von
AU  - Gierman,Rik H.
AU  - Gierman,Rik H.
ED  - World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro, Brasil)
TI  - Petrochemical steam crackers as refinery upgrading units
U1  - CD W938 2 0013940 
ER  -