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3. Sur l'unicité du problème de Cauchy dans une classe de fonctions non-bornées;Chabrowski;Ann. Polon. Math.,1971
4. Representation theorems and Fatou theorems for parabolic systems in the sense of Petrovskiǐ;Chabrowski,1974
5. Partial differential equations of parabolic type;Friedman,1964