Zhang S, Shapiro N, Gehrke G, Castner J, Liu Z, Guo B, Prasad R, Zhang J, Haines SR, Kormos D, Frey P, Qin R, Dannemiller KC (2019) Smartphone App for Residential Testing of Formaldehyde (SmART-Form). Build Environ 148:567–578 . doi: 10.1016/J.BUILDENV.2018.11.029