1
Vesper, Wilhelm
De Gruyter,,
2017,
2
Blumenthal, Peter
De Gruyter,,
2017,
3
Ágel, Vilmos.
De Gruyter,,
2017,
4
Günther, Hartmut.
De Gruyter,,
2017,
5
Bröker, Norbert
De Gruyter,,
2017,