@inproceedings{ López,

author = { Esperanza López Centella } ,

title = { Duality theorem for groupoids and weak Hopf algebras },

booktitle = { Workshop on Categorical Studies of Quantum Symmetries and their Applications },

year = { 2012 },

pages = { None - None },

location = { Wigner Research Centre for Physics, HAS (Budapest, Hungary) },

}