Kotter, John P. (5) Kotter, John P. (harvard Business School; Kotter International), Akhtar, Vanessa (kotter International), Gupta, Gaurav (kotter International; Ka Partners) (2) Kotter, John, Rathgeber, Holger (2) Harvard Business Review, Kotter, John P., Mauborgne, Renee A., Kim, W. Chan (2) Salman, Yaamina, Broten, Nick (1)