@article{SIGMA_2016_12_a2,
     author = {Roy Oste},
     title = {Doubling {(Dual)} {Hahn} {Polynomials:} {Classification} and {Applications}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2016},
     volume = {12},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2016_12_a2/}
}