Carter, Ecology Lab Protocol Packet, 2003.
LaMotte Company. 1994, LaMotte Soil Handbook. LaMotte Company. Chestertown, Maryland.
Menyalio, Oleg V., Bruce Hungale, and Wolfgang Zech. May 2002, Tree Species Mediated Soil Chemical Changes in a Siberian Artifical Afforestation Experiment. Plant and Soil, 242 (2): 171-182.
Menyalio, Oleg V., Bruce Hungale. April 2003. Interactive Effects of Tree Species and Soil Moisture on Methane consumption. Soil Biology and Biochemistry. 35: 625-628.