John Pike (1955-10-26). "Austria". Globalsecurity.org. Archived from the original on 2009-09-06.
news.google.com
"Himmler started laying the plans for underground warfare in the last two months of 1943.... The plans are threefold, embracing (1) Open warfare directed from Hitler's mountain headquarters; (2) Sabotage and guerrilla activity conducted by partisan bands organized by districts, and (3) Propaganda warfare to be carried on by some 200,000 Nazi followers in Europe and elsewhere. Strongholds Established Already picked S.S. (elite) troops have been established in underground strongholds and hospitals in the Austrian, Bavarian and Italian Alpine area and it is the plan of Nazi leaders to flee to that region when the German military collapse comes" Gallagher, Wes (Associated Press Correspondent) (December 13, 1944). "Nazis Prepared for Five Years Underground Warfare". The Evening Independent. St. Petersburg, Florida. Archived from the original on April 25, 2016.).
time.com
"But what of the top Nazis who cannot hide? With a compact army of young SS and Hitler Youth fanatics, they will retreat, behind a loyal rearguard cover of Volksgrenadiere and Volksstürmer, to the Alpine massif which reaches from southern Bavaria across western Austria to northern Italy. There immense stores of food and munitions are being laid down in prepared fortifications. If the retreat is a success, such an army might hold out for years" ("World Battlefronts: Battle of Germany: The Man Who Can't Surrender". Time. February 12, 1945. Archived from the original on October 25, 2012.)
"Himmler started laying the plans for underground warfare in the last two months of 1943.... The plans are threefold, embracing (1) Open warfare directed from Hitler's mountain headquarters; (2) Sabotage and guerrilla activity conducted by partisan bands organized by districts, and (3) Propaganda warfare to be carried on by some 200,000 Nazi followers in Europe and elsewhere. Strongholds Established Already picked S.S. (elite) troops have been established in underground strongholds and hospitals in the Austrian, Bavarian and Italian Alpine area and it is the plan of Nazi leaders to flee to that region when the German military collapse comes" Gallagher, Wes (Associated Press Correspondent) (December 13, 1944). "Nazis Prepared for Five Years Underground Warfare". The Evening Independent. St. Petersburg, Florida. Archived from the original on April 25, 2016.).
"But what of the top Nazis who cannot hide? With a compact army of young SS and Hitler Youth fanatics, they will retreat, behind a loyal rearguard cover of Volksgrenadiere and Volksstürmer, to the Alpine massif which reaches from southern Bavaria across western Austria to northern Italy. There immense stores of food and munitions are being laid down in prepared fortifications. If the retreat is a success, such an army might hold out for years" ("World Battlefronts: Battle of Germany: The Man Who Can't Surrender". Time. February 12, 1945. Archived from the original on October 25, 2012.)