DG7BBA CU PILLHUHN WAS HERE, 26 Feb 2018 https://books.google.de/books/about/Compilerbau.html?id=qcCiBgAAQBAJ
BERTRAM AT CAETEC DG7BBA BAASKE-SCHOTT ET. AL., 15 Jan 2018 https://books.google.de/books/about/Compilerbau.html?id=qcCiBgAAQBAJ