@Article{ authors = " Lilia Nikolova Apostolova", title = "On the Local Solvability of Overdetermined Elliptic Systems Generated by Complex-Valued Smooth Vector Fields ", journal = "Bulletin de la Société des Science et des Lettres de Łódź. Serie: Recherches sur les Déformations", issue = "1989 / Numer 56", pages = "1 - 9" }