@article{10_4064_ap_31_2_131_140,
     author = {L. Erbe},
     title = {Stability and periodicity for linear differential equations with periodic coefficients},
     journal = {Annales Polonici Mathematici},
     pages = {131--140},
     publisher = {mathdoc},
     volume = {31},
     number = {2},
     year = {1975},
     doi = {10.4064/ap-31-2-131-140},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-31-2-131-140/}
}