1. S. Abhyankar,Local analytic geometry, Academic Press, 1964.
2. A. Andreotti —Y. T. Siu,Projective embedding of pseudoconcave spaces, Ann. Scuola Norm. Sup. Pisa,24 (1970), pp. 231–277.
3. A. Andreotti — W. Stoll,Meromorphic functions on complex spaces (enlarged version of a talk given by the first author in Paris), Séminaire F. Norguet, 1970–1971.
4. A. Andreotti — W. Stoll,Analytic and algebraic dependence of meromorphic functions, Springer-Verlag, 1971.
5. H. Behnke —K. Stein,Analytische Funktionen mehrerer Veränderlichen zu vorgegebenen Null- und Polstellen flächen-Jahresbericht d. Deutschen Mathem-Vereininnng,47 (1937). pp. 177–192.