Jürgen Kocka
[ca] Jürgen Kocka
[cs] Jürgen Kocka
[de] Jürgen Kocka
[fa] یورگن کوکا
[fr] Jürgen Kocka
[hu] Jürgen Kocka
[it] Jürgen Kocka
[nb] Jürgen Kocka
[pl] Jürgen Kocka
[ru] Кока, Юрген