@article{UMJ_2020_6_2_a11,
     author = {Xianzhong Zhao and Miaomiao Ren and Sini\v{s}a Crvenkovi\'c and Yong Shao and Petar Dapi\'c},
     title = {The variety generated by an ai-semiring of order three},
     journal = {Ural mathematical journal},
     pages = {117--132},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2020_6_2_a11/}
}