TY - GEN AU - Fedori︠u︡k,M.V. TI - Partial differential equations V: asymptotic methods for partial differential equations T2 - Encyclopaedia of mathematical sciences SN - 3540533710 AV - QA371 .P35 1999 PY - 1999/// CY - Berlin, New York PB - Springer KW - Differential equations, Partial KW - Asymptotic theory N1 - Includes bibliographical references and index ER -