@article{10_4064_aa_20_1_33_51,
     author = {H. Williams},
     title = {On a generalization of the {Lucas} functions},
     journal = {Acta Arithmetica},
     pages = {33--51},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1972},
     doi = {10.4064/aa-20-1-33-51},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-20-1-33-51/}
}