@article{1250130982,
author = {Graffi, S. and Grecchi, V.},
title = {Stieltjes type continued fractions in quantum electrodynamics},
journal = {Rocky Mountain J. Math.},
volume = {4},
number = {4},
year = {1974},
pages = { 363-366},
language = {en},
url = {http://dml.mathdoc.fr/item/1250130982}
}
Graffi, S.; Grecchi, V. Stieltjes type continued fractions in quantum electrodynamics. Rocky Mountain J. Math., Tome 4 (1974) no. 4, pp. 363-366. http://gdmltest.u-ga.fr/item/1250130982/