1950
地下水道 Kanal 1957
1950
1940
1990
2010
1990
1950
2000
1990
1980
2000
1950
2010
1960
1990
1950
1990
1960
1940
1960
1960
1960
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950
1950