%0 Journal Article %A M. P. Akimov %A S. D. Mordovskoy %A N. P. Starostin %T Calculating the parameters for an underground polyethylene heat supply pipeline in perennial frozen soils %J Matematičeskie zametki SVFU %D 2021 %P 67-77 %V 28 %N 1 %U http://geodesic.mathdoc.fr/item/SVFU_2021_28_1_a5/ %G ru %F SVFU_2021_28_1_a5