@article{SIGMA_2016_12_a37,
     author = {Ernest G. Kalnins and Willard Miller Jr. and Eyal Subag},
     title = {B\^ocher {Contractions} of {Conformally} {Superintegrable} {Laplace} {Equations}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2016},
     volume = {12},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2016_12_a37/}
}