Citation: E. Klokocnikova et al., Environmental analysis in the Czech Republic: organisation of proficiency testing and its use in laboratory assessment, ACCRED Q A, 6(4-5), 2001, pp. 186-189
Citation: P. Finger et al., Checking maintaining the principles of correct laboratory practice and future perspectives, CHEM LISTY, 94(10), 2000, pp. 895-896