@article{MAN_1992__292_2_164903,
     author = {K. Spallek and W. Sasin},
     title = {Gluing of differentiable spaces and applications.},
     journal = {Mathematische Annalen},
     pages = {85--102},
     year = {1992},
     volume = {292},
     number = {2},
     zbl = {0735.32020},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__292_2_164903/}
}