%0 Journal Article %A N. D. Bobarykin %A E. N. Grafova %A K. S. Latishev %T Level account of a~condition of groundwaters in drained massifs of polder systems with an allowance for drain %J Matematičeskoe modelirovanie %D 2009 %P 19-28 %V 21 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_2009_21_10_a2/ %G ru %F MM_2009_21_10_a2