Bridgham SD, Pastor J, Janssens JA, Chapin C, Malterer TJ.  1996.  Multiple limiting gradients in peatlands: a call for a new paradigm.  Wetlands 16:45-65

Damman, AWH and French, TW. 1987. The ecology of peat bogs of the glaciated northeastern United States: A community profile. U.S. Fish Wildl. Serv. Biol. Rep. 85(7.16). 100 pp

Gorham, E and Janssens, J. 1992. Concepts of fen and bog re-examined in relation to bryophyte cover and the acidity of surface waters. Acts Soc. Botan. Polon. 61:7-20.

Moore, PD. 1997. Bog standards in Minnesota. Nature 386:655-657

Zoltai SC, Vitt DH.  1995.  Canadian wetlands: environmental gradients and classification.  Vegetatio 118:131-137