@article{AIF_1991__41_1_189_0,
     author = {Moerdijk, Ieke},
     title = {Classifying toposes and foliations},
     journal = {Annales de l'Institut Fourier},
     pages = {189--209},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {41},
     number = {1},
     year = {1991},
     doi = {10.5802/aif.1254},
     mrnumber = {92i:57028},
     zbl = {0727.57029},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.1254/}
}