ŠPERLINGOVÁ, I., DABROWSKÁ, L., STRÁNSKÝ, V., KUČERA, J., TICHÝ, M. Preliminary study to prepare a reference material of styrene metabolites – mandelic acid and phenolglyoxilic acid – in human urine. Accreditation and Quality Assurance. 2003, 8(3-4), 113-116. ISSN 0949-1775. E-ISSN 1432-0517.