@article{10_4153_CMB_1983_068_9,
     author = {Littlejohn, Lance L.},
     title = {The {Krall} {Polynomials} as {Solutions} to a {Second} {Order} {Differential} {Equation}},
     journal = {Canadian mathematical bulletin},
     pages = {410--417},
     year = {1983},
     volume = {26},
     number = {4},
     doi = {10.4153/CMB-1983-068-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-068-9/}
}