1. Chromatographic separation and concentration of thorium and rare earths from uranium using alumina hydrofluoric acid. Preparation of carrier-free radiothorium and contribution to the fission rare earths;Abrao,1970
2. Determinación espectrográfica de boro y silfcio em tetrafluorure de uranio: estudio de las reaccionea quimicas que tienen lugar en el cratar del electrodo al utilizer ZnO como aupresor de la excitacion del uranio;Alduan,1973
3. Spectrochemical determination of trace impurities in uranium oxide by carrier distillation method using the DC arc cathode-central region;Aziz,1974
4. Evaluation qf direct reading attachment for emission spectrograph;Barton,1966
5. The emission spectrographic determination of impurities in uranium 233 dioxide after pre-concentration of the rare-earth elements by ion exchange;Birks;Analysi,1964