Nishihara, H., Igarashi, Y., Kodama, T. (1991). <i>Hydrogenovibrio marinus</i> gen. nov., sp. nov., a marine obligately chemolithoautotrophic hydrogen-oxidizing bacterium. <i> Int.J.Syst.Bacteriol. </i><b> 41 </b>: 130-133 .

Spring, S., Jäckel, U., Wagner, M., Kämpfer, P. (2004). <i>Ottowia thiooxydans</i> gen. nov., sp. nov., a novel facultatively anaerobic, N<sub>2</sub>O-producing bacterium isolated from activated sludge, and transfer of <i>Aquaspirillum gracile</i> to <i>Hylemonella gracilis</i> gen. nov., comb. nov. <i> Int.J.Syst.Evol.Microbiol. </i><b> 54 </b>: 99-106 .
Canale-Parola, E., Rosenthal, S. L., Kupfer, D. G. (1966). Morphological and physiological characteristics of Spirillum gracile sp. n. <i> Antonie van Leeuwenhoek J.Microbiol.Serol. </i><b> 32 </b>: 113-124 .
Hylemon, P. B., Wells, J. S., Krieg, N. R., Jannasch, H. W. (1973). The genus <i>Spirillum</i>: a taxonomic study. <i> Int.J.Syst.Bacteriol. </i><b> 23 </b>: 340-380 .

Collins, M. D., Hutson, R. A., Grant, I. R., Patterson, M. F. (2000). Phylogenetic characterization of a novel radiation-resistant bacterium from irradiated pork: description of <i>Hymenobacter actinosclerus</i> sp. nov. <i> Int.J.Syst.Evol.Microbiol. </i><b> 50 </b>: 731-734 .

Buczolits, S., Denner, E. B. M., Vybiral, D., Wieser, M., Kämpfer, P., Busse, H. J. (2002). Classification of three airborne bacteria and proposal of <i>Hymenobacter aerophilus</i> sp. nov. <i> Int.J.Syst.Evol.Microbiol. </i><b> 52 </b>: 445-456 .

(1999). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 68. <i> Int.J.Syst.Bacteriol. </i><b> 49 </b>: 1-3 .
Hirsch, P., Ludwig, W., Hethke, C., Sittig, M., Hoffmann, B. (1998). <i>Hymenobacter roseosalivarius</i> gen. nov., sp. nov. from continental antarctic soils and sandstone: bacteria of the <i>Cytophaga/Flavobacterium/Bacteroides</i> line of phylogenetic descent. <i> Syst.Appl.Microbiol. </i><b> 21 </b>: 374-383 .

Zillig, W., Holz, I., Wunderl, S. (1991). <i>Hyperthermus</i> <i>butylicus</i> gen. nov., sp. nov., a hyperthermophilic, anaerobic, peptide-fermenting, facultatively H<sub>2</sub>S-generating archaeobacterium. <i> Int.J.Syst.Bacteriol. </i><b> 41 </b>: 169-170 .