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@article{ARM_2001__37_2_a1, author = {Risteski, Ice B.}, title = {Reduction of the modified {Poincar\'e} differential equation to {Birkhoff} matrix form}, journal = {Archivum mathematicum}, pages = {103--113}, publisher = {mathdoc}, volume = {37}, number = {2}, year = {2001}, mrnumber = {1838407}, zbl = {1090.34005}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_2001__37_2_a1/} }
Risteski, Ice B. Reduction of the modified Poincaré differential equation to Birkhoff matrix form. Archivum mathematicum, Tome 37 (2001) no. 2, pp. 103-113. http://geodesic.mathdoc.fr/item/ARM_2001__37_2_a1/