Kerodon

@book{MR0210125,
    AUTHOR = "Gabriel, P. and Zisman, M.",
    TITLE = "Calculus of fractions and homotopy theory",
    SERIES = "Ergebnisse der Mathematik und ihrer Grenzgebiete, Band 35",
    PUBLISHER = "Springer-Verlag New York, Inc., New York",
    YEAR = "1967",
    PAGES = "x+168",
    MRCLASS = "55.40 (18.00)",
    MRNUMBER = "0210125",
    MRREVIEWER = "A. K. Bousfield"
}