HADI, M. H. WEAK SEPARATION AXIOMS VIA π‘«πŽ, π‘«πœΆβˆ’πŽ, π‘«π’‘π’“π’†βˆ’πŽ, π‘«π’ƒβˆ’πŽ, AND π‘«πœ·βˆ’πŽ -SETS. European Scientific Journal, ESJ, v. 9, n. 21, 12 Jul. 2013.