@article{10_4064_ap83_1_3,
     author = {Georgeta Teodoru},
     title = {The {Picard{\textendash}Ionescu} problem for
 hyperbolic inclusions with modified argument},
     journal = {Annales Polonici Mathematici},
     pages = {21--33},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {2004},
     doi = {10.4064/ap83-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap83-1-3/}
}