From professional translators, enterprises, web pages and freely available translation repositories.
"deutschlands schutzgebiete in Übersee 1884–1918" overseas protectorates 1884–1918.
"deutschlands schutzgebiete in Übersee 1884-1918" (germany’s overseas protectorates 1884-1918).
"anxi and beiting protectorates: a research on frontier policy in tang dynasty's western boundary".
"anxi and beiting protectorates: a research on frontier policy in tang dynasty's western boundary".