TY - BOOK AU - John,Fritz TI - Partial differential equations / T2 - Applied mathematical sciences ; SN - 0387906096 U1 - 515.35 JOH PY - 1982/// CY - New York : PB - Springer-Verlag, KW - Differential equations, Partial N1 - Includes index; Bibliography: p. 241-242 ER -