Ohmoto, T., Kinoshita, T., Moriyoshi, K., Sakai, K., Hamada, N. and Ohe, T. (1998). „Purification and some properties of 2-hydroxychromene-2-carboxylate isomerase from naphthalenesulfonate-assimilating Pseudomonas sp. TA-2”. J. Biochem.124: 591-597. PMID9722670.
Keck, A., Conradt, D., Mahler, A., Stolz, A., Mattes, R. and Klein, J. (2006). „Identification and functional analysis of the genes for naphthalenesulfonate catabolism by Sphingomonas xenophaga BN6”. Microbiology152: 1929-1940. PMID16804169.