@article{GDZPPN001184830,
title = {On the unique solvability of the Runge-Kutta equations.},
journal = {Numerische Mathematik},
volume = {59},
year = {1991},
pages = {129-158},
zbl = {0703.65038},
url = {http://dml.mathdoc.fr/item/GDZPPN001184830}
}
Kraaijevanger, J.F.B.M.; Schneid, J. On the unique solvability of the Runge-Kutta equations.. Numerische Mathematik, Tome 59 (1991) pp. 129-158. http://gdmltest.u-ga.fr/item/GDZPPN001184830/