TY  - BOOK
AU  - Buchi, J Richard
AU  - Siefkes, Dirk
TI  - Monadic second order theory of all countable ordinals
T2  - Lecture Notes in Mathematics, No.0328
U1  - R  LNM.0328 
PY  - 1973///
CY  - Springer-Verlag, Berlin
KW  - Lecture Notes in Mathematics
ER  -