@article{CHEB_2016_17_4_a12,
     author = {O. V. Chermnykh},
     title = {On $drl$-semigroups and $drl$-semirings},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {167--179},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2016_17_4_a12/}
}