@article{10_4153_CMB_1980_035_1,
     author = {Roberts, Leslie G.},
     title = {Some {Examples} of {Smooth} and {Regular} {Rings(1)}},
     journal = {Canadian mathematical bulletin},
     pages = {255--259},
     year = {1980},
     volume = {23},
     number = {3},
     doi = {10.4153/CMB-1980-035-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1980-035-1/}
}