Sweetin, Deborah L.; Sullivan, Elizabeth; Gordon, Gilbert (1996-01-01). "The use of chlorophenol red for the selective determination of chlorine dioxide in drinking water". Talanta. 43 (1): 103–108. doi:10.1016/0039-9140(95)01721-6. PMID18966469.
Sweetin, Deborah L.; Sullivan, Elizabeth; Gordon, Gilbert (1996-01-01). "The use of chlorophenol red for the selective determination of chlorine dioxide in drinking water". Talanta. 43 (1): 103–108. doi:10.1016/0039-9140(95)01721-6. PMID18966469.