Cita APA (7th ed.)

(2012). Hopf algebras and congruence subgroups / Yorck Sommerhäuser, Yongchang Zhu.

Cita Chicago (17th ed.)

Hopf Algebras and Congruence Subgroups / Yorck Sommerhäuser, Yongchang Zhu. 2012.

Cita MLA (9th ed.)

Hopf Algebras and Congruence Subgroups / Yorck Sommerhäuser, Yongchang Zhu. 2012.

Atenció: Aquestes cites poden no estar 100% correctes.