Analysis of information sources in references of the Wikipedia article "Public display of affection" in English language version.
The author's researches were made at Aigun in northern Manchuria where the Manchu element is preserved in a purer form and less influenced by Chinese than in southern Manchuria and Peking.
The author's researches were made at Aigun in northern Manchuria where the Manchu element is preserved in a purer form and less influenced by Chinese than in southern Manchuria and Peking.