@article{RCM_1990__24_3-4_181841,
     author = {Jairo A. Charris and Guillermo Rodriguez-Blanco},
     title = {On systems of orthogonal polynomials with inner and end point masses},
     journal = {Revista colombiana de matematicas},
     pages = {153--178},
     publisher = {mathdoc},
     volume = {24},
     number = {3-4},
     year = {1990},
     zbl = {0724.33005},
     url = {http://geodesic.mathdoc.fr/item/RCM_1990__24_3-4_181841/}
}