@article{BMMS_2014_37_3_a10,
     author = {Di Zhang and Yuqi Guo and K. P. Shum},
     title = {On {Some} {Decompositions} of {r-Disjunctive} {Languages}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2014},
     volume = {37},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2014_37_3_a10/}
}