(1982). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 8. <i> Int.J.Syst.Bacteriol. </i><b> 32 </b>: 266-268 .
Stetter, K. O., Thomm, M., Winter, J., Wildgruber, G., Huber, H., Zillig, W., Janecovic, D., König, H., Palm, P. (1981). <i>Methanothermus fervidus</i>, sp. nov., a novel extremely thermophilic methanogen isolated from an Islandic hot spring. <i> Zbl.Bakt.Hyg., I.Abt.Orig.C </i><b> 2 </b>: 166-178 .

(1986). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 22. <i> Int.J.Syst.Bacteriol. </i><b> 36 </b>: 573-576 .
Lauerer, G., Kristjansson, J. K., Langworthy, T. A., König, H., Stetter, K. O. (1986). <i>Methanothermus sociabilis</i> sp. nov., a second species within the <i>Methanothermaceae</i> growing at 97°C. <i> Syst.Appl.Microbiol. </i><b> 8 </b>: 100-105 .

(1987). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 23. <i> Int.J.Syst.Bacteriol. </i><b> 37 </b>: 179-180 .
Patel, G. B. (1984). Characterization and nutritional properties of <i>Methanothrix concilii</i> sp. nov., a mesophilc, acetoclastic methanogen. <i> Can.J.Microbiol. </i><b> 30 </b>: 1383-1396 .
(1985). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 17. <i> Int.J.Syst.Bacteriol. </i><b> 35 </b>: 223-225 .

Huser, B. A., Wuhrmann, K., Zehnder, A. (1982). <i>Methanothrix soehngenii</i> gen. nov., spec. nov., a new acetophilic, non-hydrogen oxidizing methane bacterium. <i> Arch.Microbiol. </i><b> 132 </b>: 1-9 .
(1983). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 10. <i> Int.J.Syst.Bacteriol. </i><b> 33 </b>: 438-440 .

Nozhevnikova, A. N., Chudina, V. I. (1984). Morphology of the thermophilic acetate methane bacterium <i>Methanothrix thermoacetophila</i> sp. nov. <i> Mikrobiol.Zh. </i><b> 53 </b>: 756-760 .
(1988). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 27. <i> Int.J.Syst.Bacteriol. </i><b> 38 </b>: 449 .
Nozhevnikova, A. N., Chudina, V. I. (1984). Morphology of the thermophilic acetate bacterium <i>Methanothrix thermoacetophila</i> sp. nov. <i> Mikrobiologiya </i><b> 53 </b>: 756-760 .
(1988). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 25. <i> Int.J.Syst.Bacteriol. </i><b> 38 </b>: 220-222 .