*Definition [#ja551c11] *Property [#u722d124] -strongly s-regular ⇒ [[mildly Hausdorff]]. [2] *Reference [#y1e047b3] +a +Dontchev, J.; Popvassilev, S.; Stavrova, D., ''On the η-expansion topology for the co-semi-regularization and mildly Hausdorff spaces.'', (English summary), Acta Math. Hungar. 80 (1998), no. 1-2, 9-19.