1. The application of atomic absorption spectra to chemical analysis;Walsh;Spectrochim. Acta,1955
2. Double-beam method of spectral selection with flames;Alkemade;J. Opt. Soc. Am.,1955
3. A double-beam method of spectral selection with flames;Alkemade;Appl. Sci. Res. Sect. B,1955
4. Russian, translated: Investigation of atomic absorption spectra by complete vaporization of a probe in a graphite cuvette;L'vov;Inzhener.-Fiz. Zhur. Akad. Nauk Beloruss. SSR (J. Eng. Phys. [USSR]),1959