@article{10_4064_cm114_1_4,
     author = {Eszter Gselmann},
     title = {Stability type results concerning
 the fundamental equation
 of information of multiplicative type},
     journal = {Colloquium Mathematicum},
     pages = {33--40},
     publisher = {mathdoc},
     volume = {114},
     number = {1},
     year = {2009},
     doi = {10.4064/cm114-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm114-1-4/}
}