Making the same approximations as in the previous case for ,but
making no assumption about the relative size of *K*_{f} and the aspect
ratio, we find that DEM gives

(K^*-K_fK_m-K_f) (K_mK^*)^11+b = (1-)^11+b, which can be rewritten in the form

(1K_f-1K^*) (K^*K_m)^b1+b = (1K_f-1K_m)(1-)^11+b. It is now easy to check that (DEMKr32) reduces to (DEMKr11) when and that (DEMKr32) reduces to (DEMKr21) when .

4/29/2001