1
by Falke, Sara R.
Published 2012
De Gruyter

2
by Helms, Dietrich
Published 2012
De Gruyter

3
by Apel, Willi, Davison, Archibald T.
Published 1950
Harvard University Press

4
by Hiekel, Jörn Peter
Published 2018
De Gruyter, transcript

5
by Nieper, Lena
Published 2016
transcript