@article{MM2_1984__48_155019,
     author = {M.A. Vivaldi and Maria G. Garroni},
     title = {Bilateral {Evolution} {Problems} of {Non-Variational} {Type:} {Existence,} {Uniqueness,} {H\"older-Regularity} and {Approximation} of {Solutions.}},
     journal = {Manuscripta mathematica},
     pages = {39--70},
     publisher = {mathdoc},
     volume = {48},
     year = {1984},
     zbl = {0562.35092},
     url = {http://geodesic.mathdoc.fr/item/MM2_1984__48_155019/}
}