@article{10_4064_fm_110_1_63_74,
     author = {Luigi Paganoni and Stefania Paganoni Marzegalli},
     title = {Cauchy's functional equation on semigroups},
     journal = {Fundamenta Mathematicae},
     pages = {63--74},
     publisher = {mathdoc},
     volume = {110},
     number = {1},
     year = {1980},
     doi = {10.4064/fm-110-1-63-74},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-110-1-63-74/}
}