On both occasions, our professor relies on the Topf letter of 10 April 1943, which is supposed to testify that "Topf admitted that the Krema IV ovens were made defectively" (Body Disposal, p.15).
In entrambi I casi il nostro professore si appoggia alla lettera della Topf del 10 aprile 1943 la quale attesterebbe che "Topf admitted that the Krema IV ovens were made defectively" (Body Disposal, p.15).