D Janekovic

Hyperthermus butylicus, a hyperthermophilic sulfur-reducing archaebacterium that ferments peptides

H. Klenk, W. Zillig, J. Trent, 1990, Journal of bacteriology.

The Archaebacterium Thermococcus celer Represents, a Novel Genus within the Thermophilic Branch of the Archaebacteria.

W. Zillig, W. Schäfer, I. Holz, 1983, Systematic and applied microbiology.

Picrophilus gen. nov., fam. nov.: a novel aerobic, heterotrophic, thermoacidophilic genus and family comprising archaea capable of growth around pH 0

C. Schleper, H. Klenk, W. Zillig, 1995, Journal of bacteriology.