Sumner, A. L., Shepson, P. B., Couch, T. L., Thornberry, T., Carroll, M. A., Sillman, S., Pippin, M., Bertman, S., Tan, D., Faloona, I., Brune, W., Young, V., Cooper, O., Moody, J., Stockwell, W. R. (2001). A Study of Formaldehyde Chemistry above a Forest Canopy, J. Geophys. Res., 106 , 24387-24405