Does any forum contributor have, or have access to, the above-mentioned series of thirteen volumes compiled and self-published by Herr Pfefferle during the 1980s and 1990s ?

Herr Pfefferle collated the first-hand recollections of a wide range of Kriegsmarine personnel, including former U-boat crew members. My interest is in a particular small group of U-boats. U-313 is included in that group and the recollections of one former member of her crew appear in one of Herr Pfefferle's volumes. I have identified the account.

My query is : do other contributions from former U-boat crew personnel of the boats in my interest group appear elsewhere in the volumes ? A wide-ranging question I know, but all other avenues have proved fruitless.

And might anyone be in a position to put me in touch with Herr Pfefferle ?

Thank you all in advance.