@article{ARM_2004_40_1_a6,
     author = {Ma, T. F. and Miranda, E. S. and de Souza Cortes, M. B.},
     title = {A nonlinear differential equation involving reflection of the argument},
     journal = {Archivum mathematicum},
     pages = {63--68},
     year = {2004},
     volume = {40},
     number = {1},
     mrnumber = {2054873},
     zbl = {1116.34309},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2004_40_1_a6/}
}