Dear Many
It's been a hectic week, so I am sorry for this late answer. I'm afraid I do not understand everything you say as much as I would like to, but if I have understood you correctly, you have received a copy of some document located by a former East German citizen possibly in Germany or perhaps somewhere else in the former Soviet Empire. The document itself is not a Luftwaffe document but a document relating to the German Army (Heer). You are still unable to either disclose the Gentlemans name or the document itself because of your promise to said person. But at some later stage when you publish your own work all will be revealed, at least the name of your source.
All I now need to know if you are able to read the documents diary number? If you do perhaps you can reveal that as well in your forthcoming publication. May I ask what it's title would be?
Cheers
Stig