Unfortunatelly in polish language:
(title: Niemieckie ciężkie baterie przeciwlotnicze wokół Oświęcimia)
https://www.amazon.com/Niemieckie-ci...s&sr=1-1-fkmr0
Book has 413 pages, 315 pictures
Simplified Table of Contents
1. Development of anti-aircraft defense
2. Bombing raids
3. Reconaisance missions
4. German heavy anti-aircraft batteries
5. General operating principles
(Kommandogerate, Funkmessgerat, Malsi, Gun)
6. Assembly of heavy guns (wooden and concrete base)
7. Battery command post (wooden and concrete version)
8. Radars
9. Characteristics of heavy anti-aircraft guns
10. Prisoners
11. German expansion plans