@article{10_1023_B_APOM_0000042366_62321_55,
     author = {Fischer, Alexandr},
     title = {Approximation of periodic solutions of a system of periodic linear nonhomogeneous differential equations},
     journal = {Applications of Mathematics},
     pages = {269--284},
     publisher = {mathdoc},
     volume = {49},
     number = {3},
     year = {2004},
     doi = {10.1023/B:APOM.0000042366.62321.55},
     mrnumber = {2059430},
     zbl = {1099.34041},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1023/B:APOM.0000042366.62321.55/}
}