@article{GDZPPN002549840,
title = {On an equation of information theory.},
journal = {Aequationes mathematicae},
volume = {20},
year = {1980},
pages = {18-22},
zbl = {0433.39010},
url = {http://dml.mathdoc.fr/item/GDZPPN002549840}
}
Swiatak, Halina. On an equation of information theory.. Aequationes mathematicae, Tome 20 (1980) pp. 18-22. http://gdmltest.u-ga.fr/item/GDZPPN002549840/