1
by Sieblist, Otto
Published 1909
Springer Berlin Heidelberg
Table of Contents: .... Rumänien. -- 17. Serbien. -- 18. Bulgarien. -- 19. Griechenland. -- 20. Tiirkei. -- Amerika. -- 21...

2
Published 2018
Routledge
Table of Contents: ...; Data; Method; Results and discussion; Bulgaria case study (Group 1); Latvia case study (Group 3...