Vajta L, Moser M. THE INVESTIGATION OF GASOLINES AND MINERAL OILS BY X-RAY FLUORESCENCE SPECTROGRAPHY: THE DETERMINATION OF THE LEAD CONTENT OF ETHYLGASOLINES AND THE INVESTIGATION OF TRACE ELEMENTS IN MINERAL OILS Period. Polytech. Chem. Eng. [Internet]. 1965 Jan. 1 [cited 2024 May 19];9(4):275-83. Available from: https://pp.bme.hu/ch/article/view/3532