Accelerating the Profitability of Hewlett-Packard's Supply Chains. - Corey A. Billington; Gianpaolo Callioni; Barrett Crane; John D. Ruark; Julie Unruh Rapp; Trace White; Sean P. Willems (Interfaces, 2004)

Inventory Optimization at Procter & Gamble: Achieving Real Benefits Through User Adoption of Inventory Tools. - Ingrid Farasyn; Salal Humair; Joel I. Kahn; John J. Neale; Oscar Rosen; John D. Ruark; William Tarlton; Wim Van de Velde; Glenn Wegryn; Sean P. Willems (Interfaces, 2011)

Incorporating Stochastic Lead Times Into the Guaranteed Service Model of Safety Stock Optimization. - Salal Humair; John D. Ruark; Brian Tomlin; Sean P. Willems (Interfaces, 2013)