1950
地下水道 Kanal 1957
1950
2020
1940
1960
1970
1950
1970
1980
2000
1950
1990
1970
1970
1990
1980
1970
1970
1990
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990