@article{10_4064_fm213_1_4,
     author = {J. D. Mitchell and Y. P\'eresse},
     title = {Generating countable sets of surjective functions},
     journal = {Fundamenta Mathematicae},
     pages = {67--93},
     publisher = {mathdoc},
     volume = {213},
     number = {1},
     year = {2011},
     doi = {10.4064/fm213-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm213-1-4/}
}