@article{CRMATH_2003__336_2_163_0,
     author = {Kai Behrend and Ping Xu},
     title = {\protect\emph{S}\protect\textsuperscript{1}-bundles and gerbes over differentiable stacks},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {163--168},
     publisher = {Elsevier},
     volume = {336},
     number = {2},
     year = {2003},
     doi = {10.1016/S1631-073X(02)00025-0},
     language = {en},
}