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@article{SJC_2007_1_1_a4, author = {Radev, Slavian}, title = {Mixed {Theories}}, journal = {Serdica Journal of Computing}, pages = {101--114}, publisher = {mathdoc}, volume = {1}, number = {1}, year = {2007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/SJC_2007_1_1_a4/} }
Radev, Slavian. Mixed Theories. Serdica Journal of Computing, Tome 1 (2007) no. 1, pp. 101-114. http://geodesic.mathdoc.fr/item/SJC_2007_1_1_a4/