@Book{Bergman1969, author="S. Bergman", title="Integral operators in the Theory of Linear Partial Differential Equations", year="1969", publisher="Ergebnisse der Mathematik und ihrer Grenzgebiete, Band 23, Springer-Verlag", address="New Yok" } @Book{Gilbert1969, author="R. P. Gilbert", title="Function Theoretic Methods in Partial Differential Equations", year="1969", publisher=" Math. in Science and Engineering Vol. 54, Academic Press", address="New York" } @Article{Gilbert1963, author="R. P. Gilbert, D. L. Colton", title="Integral operator methods in biaxial symmetric potential theory", journal="Contrib. Differential Equations ", year="1963", pages="441-456. ", volume="2" } @Article{Gilbert1968, author="R. P. Gilbert, D. L. Colton", title="Singularities of solutions to elliptic partial differential equations", journal="Quarterly J. Math.", year="1968", pages="391-396. ", volume="19" } @Article{Juneja1976, author="O. P. Juneja, G. P. Kapoor, S. K. Bajpai ", title="On the (p; q)-order and lower (p; q)-order of an entire function", journal="J. Reine Angew. Math. ", year="1976", pages="53-67. ", volume="282" } @Article{Juneja1977, author="O. P. Juneja, G. P. Kapoor, S. K. Bajpai ", title="On the (p; q)-type and lower (p; q)-type of an entire function", journal="J. Reine Angrew. Math. ", year="1977", pages="180-190. ", volume="290" } @Book{Kreyszig1988, author="E. O. Kreyszig, M. Kracht", title="Methods of Complex Analysis in Partial Differential Equations with Applications", year="1988", publisher="Canadian Math. Soc. Series of Monographs and Adv. Texts, John Wiley and Sons ", address="New York" } @Article{McCoy1979, author="P. A. McCoy", title="Polynomial approximation and growth of generalized axisymmetric potentials", journal="Canadian J. Math.", year="1979", pages="49-59.", volume="XXXI" } @Article{McCoy1991, author="P. A. McCoy", title="Optimal approximation and growth of solution to a class of elliptic differential equations", journal="J. Math. Anal. Appl. ", year="1991", pages="203-211. ", volume="154" } @Article{McCoy1992, author="P. A. McCoy", title="Solutions of the Helmholtz equation having rapid growth", journal="Complex Variables and Elliptic Equations ", year="1992", pages="91-101. ", volume="18" }