@article{1077476582,
author = {Schweitzer, M.},
title = {The partial sums of second order of the geometric series},
journal = {Duke Math. J.},
volume = {18},
number = {1},
year = {1951},
pages = { 527-533},
language = {en},
url = {http://dml.mathdoc.fr/item/1077476582}
}
Schweitzer, M. The partial sums of second order of the geometric series. Duke Math. J., Tome 18 (1951) no. 1, pp. 527-533. http://gdmltest.u-ga.fr/item/1077476582/