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Ottokar Czernin Tham khảoThực đơn
Ottokar Czernin Tham khảoLiên quan
Ottokar Czernin Otto Warmbier Otto Kähler (Thiếu tướng) Otto Kreß von Kressenstein Otto Martler Otto BarchTài liệu tham khảo
WikiPedia: Ottokar Czernin http://www.biographien.ac.at/oebl_1/162.pdf http://www.aeiou.at/aeiou.encyclop.c/c909803.htm http://www.angelfire.com/realm/gotha/gotha/czernin... http://www.antiquesatoz.com/sgfleece/knights7.htm http://www.firstworldwar.com/bio/czernin.htm http://tornai.com/rendtagok.htm http://mdz10.bib-bvb.de/~db/0001/bsb00016319/image... http://www.dhm.de/lemo/html/biografien/ChudenitzOt... http://data.bibliotheken.nl/id/thes/p097155365 //archive.org/search.php?query=((subject:%22Czerni...