@article{JRAM_1980__316_152249,
     author = {Alexander Prestel and Martin Ziegler},
     title = {Non-axiomatizable classes of {V-topological} fields.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {211--214},
     publisher = {mathdoc},
     volume = {316},
     year = {1980},
     zbl = {0453.12012},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1980__316_152249/}
}