Edward J. M. Rhoads: Manchus and Han: Ethnic Relations and Political Power in Late Qing and Early Republican China, 1861–1928. University of Washington Press, 2000, ISBN 978-0-295-98040-9, S.60– (google.com): "However, the dress code was required only of the scholar-official elite and not of the entire male population. Therefore, the great majority of Han men were free to continue to dress as they had during the Ming."