@article{10_1007_s10587_014_0094_9,
     author = {Nan, Jizhu and Wei, Yangjiang and Tang, Gaohua},
     title = {The fundamental constituents of iteration digraphs of finite commutative rings},
     journal = {Czechoslovak Mathematical Journal},
     pages = {199--208},
     publisher = {mathdoc},
     volume = {64},
     number = {1},
     year = {2014},
     doi = {10.1007/s10587-014-0094-9},
     mrnumber = {3247455},
     zbl = {06391487},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10587-014-0094-9/}
}