Reference

Search for REF=[4246].
4246
Burggraf, S., Huber, H. and Stetter, K. O.
Reclassification of the crenarchaeal orders and families in accordance with 16S rRNA sequence data.
Int. J. Syst. Bacteriol. 47: 657-660, 1997.
DOI: 10.1099/00207713-47-3-657.