@other{https://resolver.caltech.edu/CaltechETD:etd-12062004-133814,
    title = "The Sulfonation of Ortho Toluidine and the Preparation of Sodium 6-Chloro-5-Nitro-Meta-Tolene Sulfonate",
    url = "https://resolver.caltech.edu/CaltechETD:etd-12062004-133814",
    id = "record",
    doi = "10.7907/7QT9-YD51"
}