@article{KYB_2012_48_5_a1,
     author = {Ay, Nihat and Wenzel, Walter},
     title = {On solution sets of information inequalities},
     journal = {Kybernetika},
     pages = {845--864},
     year = {2012},
     volume = {48},
     number = {5},
     mrnumber = {3086855},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2012_48_5_a1/}
}