@article{10_1090_S1079_6762_97_00018_8,
     author = {Kieffer, John and Yang, En-hui},
     title = {Ergodic behavior of graph entropy},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {11--16},
     publisher = {mathdoc},
     volume = {03},
     year = {1997},
     doi = {10.1090/S1079-6762-97-00018-8},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-97-00018-8/}
}