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MARC view
Nielsen, Niels, 1865-1931. (Personal Name)
LCCN 64-13785: His Die Gammafunktion, 1965 (hdg.: Nielsen, Niels, 1865-1931)
LCCN 32-30317: His Matematiken i Danmark, 1910-12 (hdg.: Nielsen, Niel, 1865-1931; usage: Niels Nielsen)