@book {TN_libero_mab2,
author
=
{
}
,
title
=
{
Die Erde
2
}
,
publisher
=
{
Hallwag
}
,
year
=
{
[1957]
}
,
address
=
{
Bern
}
,
url
=
{
http://slubdd.de/katalog?TN_libero_mab2
}
}
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