1
International symposium on anaerobic digestion. 0005: extension of the poster paper book : Bologna, 22.05.88-26.05.88.
Book
Tilche, A.
1988
...USNG - Waste water treatment - biological aspects...
2
International Biotechnology Symposium 8. Vol. 2. Proceedings : Paris, 1988.
Book
Durand, G.
1988
...USNG - Waste water treatment - biological aspects...