@article{https://resolver.caltech.edu/CaltechAUTHORS:LAGsiamrev72,
    title = "Basic Concepts Underlying Singular Perturbation Techniques",
    journal = "SIAM Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:LAGsiamrev72",
    id = "record",
    issn = "0036-1445",
    doi = "10.1137/1014002",
    volume = "14"
}