@book { MaximalnilpotentsubalgebrasINilradicalsandCartansubalgebrasinassociativealgebrasWith428exercises,
    title = "Maximal nilpotent subalgebras I: Nilradicals and Cartan subalgebras in associative algebras. With 428 exercises",
    author = "Sven Bodo {Wirsing}",
    year = "2016",
    publisher = "Anchor Academic Publishing",
    address = "Hamburg, Germany",
    url = "https://m.anchor-publishing.com/document/349138"
}