1. Submicrogram determination of iron by inverse polarography;Buffie;Chimia,1967
2. Trace Impurities distribution in potassium chloride and sodium chloride powers and single crystals;Fano;Microchem. J.,1969
3. A versatile automatic polarograph with hanging mercury drop electrode;Fano;Microchem. J.,1970
4. Simultaneous determination of iron and titanium in raw materials and ceramics by alternating current polarography;Kowalski;Chem. Anal. (Warsaw),1968
5. Determination of nanogram amounts of Co and Ni by stripping analysis;Markova;Zh. Anal. Khim.,1968