8Rice E. Building in the North . Alaska Science and Technology Foundation, Anchorage, 199.58.
9Lachenbruch A H, Brewer M C. Dissipation of the temperature effect of drilling a well in Arctic Alaska . Reston, VA, USGS Bulletin, No.B1083-C, 1959. 46-58.
10Williams P J, Smith M W. Studies in Polar Research, the Frozen Earth, Fundamentals of Geocryology . Cambridge: Cambridge University Press, 1994. 149-173.