@article{GDZPPN001179993,
title = {Some Generalizations of the Euler-Knopp Transformation.},
journal = {Numerische Mathematik},
volume = {50},
year = {1986},
pages = {199-220},
zbl = {0588.65001},
url = {http://dml.mathdoc.fr/item/GDZPPN001179993}
}
Lyness, J.N.; Gabutti, Bruno. Some Generalizations of the Euler-Knopp Transformation.. Numerische Mathematik, Tome 50 (1986) pp. 199-220. http://gdmltest.u-ga.fr/item/GDZPPN001179993/