TY - JOUR TI - Robust Project Portfolio Management: Capability Evolution and Maturity U1 - Recommended JF - International Journal of Managing Projects in Business AU - Killen, Catherine P. AU - Hunt, Robert A. DO - 10.1108/17538371311291062 PY - 2013 EP - 151 SP - 131 SN - 1753-8378 IS - 1 VL - 6 ER -