@misc {MATHEDUC.02412207,
    author       = {Kessel, W. and Herrmann, H.},
    title        = {Mathematics course. Pt. 1. Sets, vectors, sequences, and functions. Kursus der Mathematik. T. 1. Mengen, Vektoren, Folgen und Funktionen.},
    howpublished = {Oct 1989. 111 p. Copy held by FIZ Karlsruhe. Ser. Title: Physikalisch-Technische Bundesanstalt. Technisch-Wissenschaftliche Dienste. [ISBN 3-88314-974-8] [ISSN 0931-7813]},
    year         = {1989},
    msc2010      = {I27xx (I28xx I37xx I38xx H37xx H38xx)},
    identifier   = {1990k.00614},
}