*I.Drimuş, C. Tache - "Lazăr Edeleanu, precursor al chimizării petrolului" , (in Romanian) in Revista de chimie 1958*Robert Treybal- " Liquid extraction " - McGraw Hill Book Co,1951 m first edition*Avelino Sequeira - " Lubricant base oil and wax processing CRC Press 1994"*Alan A.Comyns - "Encyclopedic Dictionary of Named Processes in Chemical" Technology "- CRC Press 1999
דרימוש וק.טאקה) - ברומנית - בRevista de chimie (כתב עת לכימיה, 1958)* Robert Treyball- " Liquid extraction " - McGrawHill Book Co,1951m first edition* Avilino Sequeira - " Lubricant base oil and wax processing CRC Press 1994"* Alan A.Comyns Encyclopedic Dictionary of Named Processes in Chemical" Technology "- CRCPress 1999