@article{PORMA_1982__41_1-4_115508,
     author = {Arosio, Alberto},
     title = {Abstract linear hyperbolic equations and asymptotic equivalence as $t\rightarrow +\infty $},
     journal = {Portugaliae mathematica},
     pages = {351--366},
     publisher = {mathdoc},
     volume = {41},
     number = {1-4},
     year = {1982},
     mrnumber = {0766864},
     zbl = {0564.35065},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115508/}
}