@book {TN_libero_mab2,
author
=
{
Drenckhahn, Friedrich
Graf, Ulrich
}
,
title
=
{
Geländemathematik
}
,
publisher
=
{
Beltz
}
,
year
=
{
1939
}
,
address
=
{
Langensalza [u.a.]
}
,
url
=
{
http://slubdd.de/katalog?TN_libero_mab2
}
}
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