Vaes. "Locally Compact Quantum Groups." Annales Scientifiques de l’École Normale Supérieure. Vol. 33, No. 6 (2000), pp. 837-934. Thomas Timmermann. "An Invitation to Quantum Groups and Duality - From Hopf Algebras to Multiplicative Unitaries and Beyond." EMS Textbooks in Mathematics, European Mathematical Society (2008). C*-algebras Functional analysis Quantum groups Harmonic analysis Representation theory