@article{ELMA_1990__45_6_141476,
     author = {G. Gunther},
     title = {An integral recurrence for sums of powers.},
     journal = {Elemente der Mathematik},
     pages = {21--23},
     publisher = {mathdoc},
     volume = {45},
     number = {6},
     year = {1990},
     zbl = {0714.11013},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1990__45_6_141476/}
}