Writing
We don't have a biography for Helmuth M. Backhaus yet.
6.7·1960
5.0·1961
6.2·1964
6.2·1963
5.3·1962
6.8·1961
5.7·1960
6.3·1963
5.5·1959
5.7·1959
7.5·1963
6.5·1958
9.0·1957
7.0·1951
1951
10.0·1965
