@article{CMJ_2007__57_2_a3,
     author = {\'Ciri\'c, M. and Petkovi\'c, T. and Bogdanovi\'c, S.},
     title = {Subdirect products of certain varieties of unary algebras},
     journal = {Czechoslovak Mathematical Journal},
     pages = {573--578},
     publisher = {mathdoc},
     volume = {57},
     number = {2},
     year = {2007},
     mrnumber = {2337615},
     zbl = {1174.08301},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2007__57_2_a3/}
}