1. Detection of additives in lubricating oils by IR spectrophotometry;Barcelo Mattuano;Inform. Quim. Anal. (Madriol),1963
2. Infrared spectrometric determination of polymethacrylates in motor oil additives;Bor;Int. Kozlemen,1961
3. A rapid nondestructive technique for infrared identification of crude oils by internal reflection spectrometry;Mattson;Anal. Chem.,1970
4. The possibility of determination small quantity of additives in lubricating oils by infrared spectroscopy;Przybylski;Nafta,1968
5. Application of infrared spectroscopy to the examination of lubricants;Gardner;Can. J. Spectrosc.,1964