@article{RCM_2021_55_2_a6,
     author = {Luis Jaime Corredor and Adrien Deloro},
     title = {A self-contained guide to {Fr\'econ's} theorem},
     journal = {Revista colombiana de matematicas},
     pages = {205--210},
     publisher = {mathdoc},
     volume = {55},
     number = {2},
     year = {2021},
     url = {http://geodesic.mathdoc.fr/item/RCM_2021_55_2_a6/}
}