P. Grin

Anaerobic treatment of raw domestic sewage at ambient temperatures using a granular bed UASB reactor

G Lettinga, G. Lettinga, R. Roersma, 1983, Biotechnology and bioengineering.

Anaerobic treatment of municipal wastewater at low temperatures.

Gatze Lettinga, P. C. Grin, R. E. Roersma, 1986 .

High rate anaerobic waste water treatment using the UASB-reactor under a wide range of temperature conditions

A. Rinzema, Gatze Lettinga, S. W. Hobma, 1984 .

Design Operation and Economy of Anaerobic Treatment

Gatze Lettinga, S. W. Hobma, L. W. Hulshoff Pol, 1983 .