H. Daynes. Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934), 97 (685):
286--307(Jun 1, 1920)
K. Syed, L. Flanagan, P. Carlson, A. Glenn, and K. Gaalen. Agricultural and Forest Meteorology, 140 (1-4):
97 - 114(2006)The Fluxnet-Canada Research Network: Influence of Climate and Disturbance on Carbon Cycling in Forests and Peatlands.