This database hosts two MLST schemes. The first is described in Bartual et al. 2005 J Clin Microbiol43:4382-4390. This is commonly referred to as the 'Oxford' scheme because it was hosted on the PubMLST site at the University of Oxford.
The second scheme is described in Diancourt et al. 2010 PLoS One7:e10034. This is commonly referred to as the 'Pasteur' scheme in order to differentiate it from the 'Oxford' scheme.