@article{1183740886, author = {Cherlin, Gregory L. and Schmitt, Peter H.}, title = {Undecidable $L^t$ Theories of Topological Abelian Groups}, journal = {J. Symbolic Logic}, volume = {46}, number = {1}, year = {1981}, pages = { 761-772}, language = {en}, url = {http://dml.mathdoc.fr/item/1183740886} }
Cherlin, Gregory L.; Schmitt, Peter H. Undecidable $L^t$ Theories of Topological Abelian Groups. J. Symbolic Logic, Tome 46 (1981) no. 1, pp. 761-772. http://gdmltest.u-ga.fr/item/1183740886/