A direct proof of Z-stability for AH algebras of bounded topological   dimension
  We prove that a unital simple approximately homogeneous (AH) C*-algebra with no dimension growth absorbs the Jiang-Su algebra tensorially without appealing to the classification theory of these algebras. Our main result continues to hold under the slightly weaker hypothesis of exponentially slow dimension growth. 
Marius Dadarlat, N. Christopher Phillips, Andrew S. Toms