@article{PIM2_1988__43(57)_257784,
     author = {Toader, G.},
     title = {On the convexity of high order of sequences.},
     journal = {Publications de l 'Institut Math\'ematique. Nouvelle S\'erie},
     pages = {35},
     publisher = {mathdoc},
     volume = {43(57)},
     year = {1988},
     zbl = {0645.26009},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/PIM2_1988__43(57)_257784/}
}