@article{JRAM_1990__407_153235, author = {A. Prestel and J. Schmid}, title = {Existentially closed domains with radical relations.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {178--201}, year = {1990}, volume = {407}, zbl = {0691.12013}, url = {http://geodesic.mathdoc.fr/item/JRAM_1990__407_153235/} }