@article{ Solr-acta14644, title = {O vloženii polugrupp v polugruppu, v kotoroj ishodnye polugruppy âvlâûtsâ nezavisimymi}, series = {Acta scientiarum mathematicarum}, author = {Megyesi László}, year = {1977}, url = {http://acta.bibl.u-szeged.hu/14644/1/math_039_fasc_003_004_329-340.pdf} }