@article{700958,
     title = {Topologicheskie polupolia i ikh primeneniia},
     booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1962},
     pages = {[106]-111},
     mrnumber = {MR0146795},
     zbl = {0117.40002},
     url = {http://dml.mathdoc.fr/item/700958}
}

Boltjanskij, V. Топологические полуполя и их применения, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1962), pp. [106]-111. http://gdmltest.u-ga.fr/item/700958/