TY - BOOK AU - Lavrent'ev, M.M. AU - Romanov, V.G. AU - Shishat.Skill, S.P. TI - III- Posed Problems of Mathematical Physics and Analysis T2 - Translation of mathematical monogrphs Vol.64 SN - 0821808966 U1 - 530.155 PY - 1986/// CY - Rhode Island PB - American Mathematical Society ER -