TY  - BOOK
AU  - Grotewold,G.
AU  - Fuhrberg,H.D.
AU  - Philipp,W.
AU  - Fuhrberg,H.D.
AU  - Philipp,W.
ED  - World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest)
TI  - Production and processing of nitrogen rich natural gases from reservoirs in the ne part of the Federal Republic of Germany
U1  - 060-665.5 W938 1979 
ER  -