https://books.google.de/books?id=dOx7LEdg99wC&pg=PT263&lpg=PT263&dq=Matth%C3%A4us+Schneiderwirth+1945&source=bl&ots=eHQFlmM3-B&sig=7EeMyyomD3zbHpxqh7W9zg6gDkg&hl=de&sa=X&ved=0ahUKEwi2scvu39rQAhUDjSwKHXdKCoEQ6AEIITAB#v=onepage&q=Matth%C3%A4us%20Schneiderwirth%201945&f=false