Key points are not available for this paper at this time.
Dale H. Vitt, Linda A. Halsey, Stephen C. Zoltai, The Bog Landforms of Continental Western Canada in Relation to Climate and Permafrost Patterns, Arctic and Alpine Research, Vol. 26, No. 1 (Feb., 1994), pp. 1-13
Vitt et al. (Tue,) studied this question.