Йохан I (Пфалц-Цвайбрюкен) (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Йохан I (Пфалц-Цвайбрюкен)" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

1,974^th place

4,457^th place

deutsche-biographie.de

Volker Press: Johann I. von Zweibrücken. In: Neue Deutsche Biographie (NDB). Band 10, Duncker & Humblot, Berlin 1974, ISBN 3-428-00191-5, S. 513 f. (Digitalisat).