1. Singularities of holomorphic foliations;Baum;J. Differential Geom.,1972
2. Variétés analytiques complexes et fonctions automorphes;Cartan,1953
3. Two theorems on extensions of holomorphic mappings;Griffiths;Invent. Math.,1971
4. Analytic Functions of Several Complex Variables;Gunning,1965
5. Feuilletages sur les variétés ouvertes;Haffliger;Topology,1970