@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/