@book { MaximalnilpotentsubalgebrasIIAcorrespondencetheoremwithinsolvableassociativealgebrasWith242exercises, title = "Maximal nilpotent subalgebras II: A correspondence theorem within solvable associative algebras. With 242 exercises", author = "Sven Bodo {Wirsing}", year = "2017", publisher = "Anchor Academic Publishing", address = "Hamburg, Germany", url = "https://m.anchor-publishing.com/document/380467" }