document

Low cost multichannel scanning pH-stat

Kuenen, J.G. (author), Cuperus, P. (author), Harder, W. (author)

journal article 1973

document

Laboratory fermenter with an improved magnetic drive

Harder, W. (author), Visser, K. (author), Kuenen, J.G. (author)

journal article 1974

document

Microbial Selection in Continuous Culture

Harder, W. (author), Kuenen, J.G. (author), Matin, A. (author)

journal article 1977