@article{NSJOM_1983_13_Nonea_25,
     author = {Bogdanovi\'c 

 Stojan},
     title = {Semigroup whose proper 

 ieals are archimedean semigroups},
     journal = {Novi Sad Journal of Mathematics},
     pages = {289-296},
     year = {1983},
     volume = {13},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1983_13_Nonea_25/}
}