J Handschag

Evaluation of ceramic and membrane diffusers under operating conditions with the dynamic offgas method.

A Schuchardt, J A Libra, C Sahlmann, 2005, Water environment research : a research publication of the Water Environment Federation.

Comparison of the efficiency of large-scale ceramic and membrane aeration systems with the dynamic off-gas method.

J A Libra, U Wiesmann, R Gnirss, 2002, Water science and technology : a journal of the International Association on Water Pollution Research.