N. Westberg

An introductory study of regulation in the activated sludge process

N. Westberg, Nils Westberg, 1969 .

OXYGEN CONSUMPTION AND REAERATION IN SEWERS

N. Westberg, B. Gustafsson, 1965 .

A study of the activated sludge process as a bacterial growth process

N. Westberg, 1967 .