@article{NUMA_1990__58_5_133499,
     author = {E. Hairer and J.M. Sanz-Serna and A. Iserles},
     title = {Equilibria of {Runge-Kutta} methods.},
     journal = {Numerische Mathematik},
     pages = {243--254},
     publisher = {mathdoc},
     volume = {58},
     number = {5},
     year = {1990},
     zbl = {0693.65047},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1990__58_5_133499/}
}