Liu Ts’un-yan 柳存仁 , “The Penetration of Taoism into the Ming Neo-Confucianist Elite,”
T’oung Pao, Second Series, Vol. 57, Livr. 1/4 (1971), pp. 31-102. Used by kind permission of the publisher, Brill, as conveyed by Albert Hoffstädt on September 1, 2014.
Mingshi 5/47/1241 (Ritual 1) – p. 3
Mingshi 5/48/1257 (Ritual 2, 大雩) – p. 38