(2012). Hopf algebras and congruence subgroups / Yorck Sommerhäuser, Yongchang Zhu.
芝加哥风格引文Hopf Algebras and Congruence Subgroups / Yorck Sommerhäuser, Yongchang Zhu. 2012.
MLA引文Hopf Algebras and Congruence Subgroups / Yorck Sommerhäuser, Yongchang Zhu. 2012.
警告：这些引文格式不一定是100％准确.