FORTS + FORTRESSES + FORTIFICATIONS + BUNKERS (ARCHITECTURE)
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BTMILITARY BUILDINGS + POLICE STATIONS (ARCHITECTURE)
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UDC725.182
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Descriptor GERFESTUNGEN + BEFESTIGUNGEN + KASTELLE (ARCHITEKTUR)
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Descriptor ENGFORTS + FORTRESSES + FORTIFICATIONS + BUNKERS (ARCHITECTURE)
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Descriptor FREFORTERESSES + FORTIFICATIONS (ARCHITECTURE)
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Variant GERBUNKER, MILITÄRISCHE (ARCHITEKTUR)
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Variant GERBEFESTIGUNGEN (ARCHITEKTUR)
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Variant GERKASTELLE (ARCHITEKTUR)
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Variant ENGBUNKERS, MILITARY (ARCHITECTURE)
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Variant FREFORTERESSES (ARCHITECTURE)
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Variant FREFORTIFICATIONS (ARCHITECTURE)
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Variant FREBUNKERS MILITAIRES (ARCHITECTURE)
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NTURBAN FORTIFICATIONS (ARCHITECTURE)
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NTWATCHTOWERS + FORTIFICATION TOWERS (ARCHITECTURE)
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NTCITADELS (ARCHITECTURE)
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RTCASTLES (ARCHITECTURE)