@article{1183739832, author = {Woodrow, Robert E.}, title = {A Note on Countable Complete Theories Having Three Isomorphism Types of Countable Models}, journal = {J. Symbolic Logic}, volume = {41}, number = {1}, year = {1976}, pages = { 672-680}, language = {en}, url = {http://dml.mathdoc.fr/item/1183739832} }
Woodrow, Robert E. A Note on Countable Complete Theories Having Three Isomorphism Types of Countable Models. J. Symbolic Logic, Tome 41 (1976) no. 1, pp. 672-680. http://gdmltest.u-ga.fr/item/1183739832/