@article{SMJ2_2008_34_1_a11,
     author = {Bernardi, Enrico and Bove, Antonio},
     title = {On an {ODE} {Relevant} for the {General} {Theory} of the {Hyperbolic} {Cauchy} {Problem}},
     journal = {Serdica Mathematical Journal},
     pages = {311--328},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2008_34_1_a11/}
}