@article{10_4064_cm_60_61_2_519_523,
     author = {J. S. Ratti and Y. -F. Lin},
     title = {A functional equation involving f and $f^{-1}$.},
     journal = {Colloquium Mathematicum},
     pages = {519--523},
     publisher = {mathdoc},
     volume = {60},
     number = {2},
     year = {1990},
     doi = {10.4064/cm-60-61-2-519-523},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-2-519-523/}
}