@article{AFST_1966_4_30__71_0,
     author = {P\`al Fischer},
     title = {Sur l{\textquoteright}\'equivalence des \'equations fonctionnelles $f \left(x+y \right)= f \left(x \right)+ f \left(y \right) ~\hbox{et}~ f^2 \left(x+y \right)= {\left[f \left(x \right) + f \left(y \right)\right]}^2 $},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {71--74},
     publisher = {\'Edouard Privat, Libraire-\'Editeur},
     address = {Toulouse},
     volume = {4e s{\'e}rie, 30},
     year = {1966},
     zbl = {0169.48403},
     mrnumber = {248477},
     language = {fr},
     url = {https://afst.centre-mersenne.org/item/AFST_1966_4_30__71_0/}
}