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5. A. F. Glukhov and G. F. Putin, “Equilibrium and motion of a drop in a porous medium,” in: Abstr. 2-d All-Union Seminar on Hydrodynamics and Heat and Mass Transfer in Weightlessness [in Russian], Inst. Mech. of Continua USC AS USSR, Perm' (1981), pp. 128–130.