found: Work cat.: 96-213491: Kampe, H.G. The underground military command bunkers of Zossen, Germany, 1996.
found: Quick dict. weapons(bunker)
found: Dupuy dict. mil. terms(bunker)
found: Random House(bunker)
found: Web. 3(bunker)
found: Merriam Webster unabridged online, March 24, 2020:(bunker: def. 1.c: a fortification chamber mostly below ground level built of reinforced concrete or similar material and usually provided with embrasures; also : a dugout that is reinforced (as with logs or bags of sand) and usually has firing slits)
