Zhang, Z., Wang, Y., Ruan, J. (1998). Reclassification of <i>Thermomonospora</i> and <i>Microtetraspora</i>. <i> Int.J.Syst.Bacteriol. </i><b> 48 </b>: 411-422 .
Kroppenstedt, R. M., Stackebrandt, E., Goodfellow, M. (1990). Taxonomic revision of the actinomycete genera <i>Actinomadura</i> and <i>Microtetraspora</i>. <i> Syst.Appl.Microbiol. </i><b> 13 </b>: 148-160 .
(1991). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 36. <i> Int.J.Syst.Bacteriol. </i><b> 41 </b>: 178-179 .

Yabuuchi, E., Kosako, Y., Fujiwara, N., Naka, T., Matsunaga, I., Ogura, H., Kobayashi, K. (2002). Emendation of the genus <i>Sphingomonas</i> Yabuuchi <i>et al</i>. 1990 and junior objective synonymy of the species of three genera, <i>Sphingobium</i>, <i>Novosphingobium</i> and <i>Sphingopyxis</i>, in conjunction with <i>Blastomonas ursincola</i>. <i> Int.J.Syst.Evol.Microbiol. </i><b> 52 </b>: 1485-1496 .
Takeuchi, M., Hamana, K., Hiraishi, A. (2001). Proposal of the genus <i>Sphingomonas</i> sensu stricto and three new genera, <i>Sphingobium</i>, <i>Novosphingobium</i> and <i>Sphingopyxis</i>, on the basis of phylogenetic and chemotaxonomic analyses. <i> Int.J.Syst.Evol.Microbiol. </i><b> 51 </b>: 1405-1417 .
Balkwill, D. L., Drake, G. R., Reeves, R. H., Fredrickson, J. K., White, D. C., Ringelberg, D. G., Chandler, D. P., Romine, M. F., Kennedy, D. W., Spadoni, C. M. (1997). Taxonomic study of aromatic-degrading bacteria from deep-terrestrial-subsurface sediments and description of <i>Sphingomonas aromaticivorans</i> sp. nov., <i>Sphingomonas subterranea</i> sp. nov., and <i>Sphingomonas stygia </i>sp. nov. <i> Int.J.Syst.Bacteriol. </i><b> 47 </b>: 191-201 .

Yabuuchi, E., Kosako, Y., Fujiwara, N., Naka, T., Matsunaga, I., Ogura, H., Kobayashi, K. (2002). Emendation of the genus <i>Sphingomonas</i> Yabuuchi <i>et al</i>. 1990 and junior objective synonymy of the species of three genera, <i>Sphingobium</i>, <i>Novosphingobium</i> and <i>Sphingopyxis</i>, in conjunction with <i>Blastomonas ursincola</i>. <i> Int.J.Syst.Evol.Microbiol. </i><b> 52 </b>: 1485-1496 .
Takeuchi, M., Hamana, K., Hiraishi, A. (2001). Proposal of the genus <i>Sphingomonas</i> sensu stricto and three new genera, <i>Sphingobium</i>, <i>Novosphingobium</i> and <i>Sphingopyxis</i>, on the basis of phylogenetic and chemotaxonomic analyses. <i> Int.J.Syst.Evol.Microbiol. </i><b> 51 </b>: 1405-1417 .
Yabuuchi, E. I., Yano, H., Oyaizu, Y., Hashimoto, T., Zaki, E., Yamamoto, H. (1990). Proposals of <i>Sphingomonas</i> <i>paucimobilis</i> gen. nov. and comb. nov., <i>Sphingomonas</i> <i>parapaucimobilis</i> sp. nov. <i>Sphingomonas</i> <i>yanoikuyae</i> sp. nov., <i>Sphingomonas</i> <i>adhaesiva</i> sp. nov., <i>Sphingomonas</i> <i>capsulata</i> comb. nov. and two genospecies of the genus <i>Sphingomonas</i>. <i> Microbiol.Immunol. </i><b> 34 </b>: 99-119 .
(1990). Validation of the publication of new names and new combinations previously effectively published outside the IJSB. List No. 34. <i> Int.J.Syst.Bacteriol. </i><b> 40 </b>: 320-321 .