@article{BMMS_2014_37_3_a9,
     author = {Leroy B. Beasley and Seok-Zun Song},
     title = {Linear {Operators} that {Preserve} {Term} {Ranks} of {Matrices} over {Semirings}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2014},
     volume = {37},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2014_37_3_a9/}
}