@article{AMI_2003_30_a2,
     author = {B\'ela Brindza and Gyula Maksa},
     title = {A note on non-negative information functions},
     journal = {Annales mathematicae et informaticae},
     pages = {31--36},
     publisher = {mathdoc},
     volume = {30},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_2003_30_a2/}
}