TY - JOUR AU - M.A. Vivaldi AU - Maria G. Garroni TI - Bilateral Evolution Problems of Non-Variational Type: Existence, Uniqueness, Hölder-Regularity and Approximation of Solutions. JO - Manuscripta mathematica PY - 1984 SP - 39 EP - 70 VL - 48 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM2_1984__48_155019/ ID - MM2_1984__48_155019 ER -