@article{MSC_2007_2007_1_a7,
     author = {Vivona, D. and  Divari, M.},
     title = {On {Two} {Conditional} {Entropies} without {Probability.}},
     journal = {Mathware & soft computing},
     pages = {125-128},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MSC_2007_2007_1_a7/}
}