@article{AM2_1976__14_136602,
     author = {J.A. Fridy},
     title = {Matrix summability and a generalized {Gibbs} phenomenon.},
     journal = {Aequationes mathematicae},
     pages = {405--412},
     publisher = {mathdoc},
     volume = {14},
     year = {1976},
     zbl = {0326.40008},
     url = {http://geodesic.mathdoc.fr/item/AM2_1976__14_136602/}
}