@article{10_4153_CJM_1992_014_5,
     author = {Zhang, Qing},
     title = {Sequence {Entropy} and {Mild} {Mixing}},
     journal = {Canadian journal of mathematics},
     pages = {215--224},
     year = {1991},
     volume = {44},
     number = {1},
     doi = {10.4153/CJM-1992-014-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1992-014-5/}
}