@other{https://resolver.caltech.edu/CaltechETD:etd-12072007-081526,
    title = "Genetics and Regulation of Pyrroloquinoline Quinone (PQQ) Biosynthesis in the Methylotrophic Bacterium Methylobacterium extorquens AM1",
    url = "https://resolver.caltech.edu/CaltechETD:etd-12072007-081526",
    id = "record",
    doi = "10.7907/cnm0-mm56"
}