TY  - BOOK
AU  - Ioffe, A. D.
AU  - Tihomirov, V. M.
AU  - Makowski, K.
TI  - Theory of external problems
U1  - 515.64 
PY  - 1979///
CY  - Amsterdam
PB  - North-Holland
N1  - "Translated from Russian by K. Makowski"
ER  -