@other{https://resolver.caltech.edu/CaltechCSTR:1990.cs-tr-90-15,
    title = "A Unified Framework for Constraint-Based Modeling",
    url = "https://resolver.caltech.edu/CaltechCSTR:1990.cs-tr-90-15",
    id = "record",
    doi = "10.7907/hnbeh-6xc79"
}