Search

Aber, J.D.  Pickett, S. T. A. 1993. “Modification of nitrogen cycling at the regional scale: the subtle effects of atmospheric deposition” : 163-174.
Jarrell, W.M., D.E. Armstrong, D.F. Grigal, E.F. Kelly, H.C. Monger, D.A. Wedin.  G. P. Robertson, C. S. Bledsoe, D. C. Coleman and P. Sollins 1999. “Soil water and temperature status” : 55-73.