@article{SIGMA_2005_1_a14,
     author = {Willard Miller},
     title = {Second {Order} {Superintegrable} {Systems} in {Three} {Dimensions}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2005},
     volume = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2005_1_a14/}
}