1. Introduction to the Microtechnique of Inorganic Analysis;Benedetti-Pichler,1950
2. Modern Laboratory Appliances;Fisher Scientific Company,1952
3. A multipurpose micropipette;Grunbaum;Microchem. J,1965
4. Quantitative Ultramicroanalysis;Kirk,1951
5. Prüfung der chemischen Reagentien auf Reinheit;Merck,1939