HFD Website Reference List
David, T. S., J. S. David, C. A. Pinto, J. Cermak, V. Nadezhdin and N. Nadezhdina (2012) Hydraulic connectivity from roots to branches depicted through sap flow: analysis on a Quercus suber tree. Functional Plant Biology, 39: 103-115.
http://dx.doi.org/10.1071/FP11185
Nadezhdina, N., M. W. Vandegehuchte and K. Steppe (2012) Sap flux density measurements based on the heat field deformation method. Trees – Structure and Function, 26: 1439-1448.
http://link.springer.com/article/10.1007%2Fs00468-012-0718-3