we will focus on change management, we will show it briefly how change
Sirkin et al  focused more on the practical side of change management and ..
 Kotter, J: Leading change: Why Transformation Efforts Fail, HBR, 1995,. March
.  Sirkin, Harold, L., Keenan, Perry, Jackson, Alan: The Hard Side of Change. Szakal Aniko Farkas the hard side of change management hbr