@article{ASNSP_1976_4_3_1_37_0, author = {F\'ary, Istv\'an}, title = {Algebraic theory of stacks}, journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze}, pages = {37--46}, publisher = {Scuola normale superiore}, volume = {Ser. 4, 3}, number = {1}, year = {1976}, mrnumber = {500911}, zbl = {0322.06015}, language = {en}, url = {http://www.numdam.org./item/ASNSP_1976_4_3_1_37_0/} }