@article{700121,
     title = {Improved K-K algorithm for computing Lyapunov values},
     booktitle = {Equadiff 8},
     series = {GDML\_Books},
     publisher = {Mathematical Institute, Slovak Academy of Sciences},
     address = {Bratislava},
     year = {1994},
     pages = {235-242},
     mrnumber = {MR1298476},
     zbl = {0811.34030},
     url = {http://dml.mathdoc.fr/item/700121}
}

Wang, Duo; Mao, Rei. Improved K-K algorithm for computing Lyapunov values, dans Equadiff 8, GDML_Books,  (1994), pp. 235-242. http://gdmltest.u-ga.fr/item/700121/