1
Groag, Edmund
De Gruyter,,
1965,
2
Groag, Edmund
De Gruyter,,
1967,
3
Groag, Edmund
De Gruyter,,
1960,
4
Groag, Edmund
De Gruyter,,
1966,
5
Petersen, Leiva
De Gruyter,,
1970,
6
Petersen, Leiva
De Gruyter,,
1983,
7
Petersen, Leiva
De Gruyter,,
1998,
8
Wachtel, Klaus
De Gruyter,,
2000,
9
Eck, Werner
De Gruyter,,
2009,