@article{10_4153_CMB_1982_064_4,
     author = {Defranza, J.},
     title = {A {General} {Inclusion} {Theorem} for l-l {N\"orlund} {Summability}},
     journal = {Canadian mathematical bulletin},
     pages = {447--455},
     year = {1982},
     volume = {25},
     number = {4},
     doi = {10.4153/CMB-1982-064-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1982-064-4/}
}