@article{GT_2009_13_4_a10,
     author = {Hofer, Helmut and Wysocki, Kris and Zehnder, Eduard},
     title = {A general {Fredholm} theory {III:} {Fredholm} functors and polyfolds},
     journal = {Geometry & topology},
     pages = {2279--2387},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {2009},
     doi = {10.2140/gt.2009.13.2279},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2009.13.2279/}
}