@article{10_4153_CJM_1971_069_9,
     author = {Carroll, Robert and State, Emile},
     title = {Existence {Theorems} for {Some} {Weak} {Abstract} {Variable} {Domain} {Hyperbolic} {Problems}},
     journal = {Canadian journal of mathematics},
     pages = {611--626},
     year = {1971},
     volume = {23},
     number = {4},
     doi = {10.4153/CJM-1971-069-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-069-9/}
}