@article{ Solr-acta13443, title = {Über einen Löwenheimschen Satz}, series = {Acta litterarum ac scientiarum Regiae Universitatis Hungaricae Francisco-Josephinae : Sectio scientiarum mathematicarum}, author = {Kalmár László}, year = {1935}, url = {http://acta.bibl.u-szeged.hu/13443/1/math_007_112-121.pdf} }