@article{10_4153_CMB_1970_029_x,
     author = {Rosenfeld, M.},
     title = {On {Polynomials} with {Related} {Level} {Sets}},
     journal = {Canadian mathematical bulletin},
     pages = {137--138},
     year = {1970},
     volume = {13},
     number = {1},
     doi = {10.4153/CMB-1970-029-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1970-029-x/}
}