S. K. Brown, M. R. Sim, M. J. Abramson, C. N. Gray: Concentration of Volatile Organic Compounds in Indoor Air - A Review, Indoor Air, 4, 123-134 (1999) .
N. Shinohara, M. Fujii, A. Yamasaki, K. Kumagai, S. Gishi, Y. Yanagisawa: Development of passive flux sampler (PFS) for measurement of formaldehyde emission rates, Proceedings of Healthy Building 2003, 763-769 (2003) .