@article{CTGDC_1982__23_2_165_0,
     author = {Duskin, John},
     title = {An outline of non-abelian cohomology in a topos : {(I)} {The} theory of bouquets and gerbes},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {165--191},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {23},
     number = {2},
     year = {1982},
     mrnumber = {667397},
     zbl = {0496.18009},
     language = {en},
     url = {http://archive.numdam.org/item/CTGDC_1982__23_2_165_0/}
}