Ponce de Leon, G. (2008). Graphical Planning Method (A New Network-based
Planning/Scheduling Paradigm. Presented at the PMICOS 5th Annual Conference, Chicago, IL
 Ponce de Leon, G. (1972). Extensions to the Solutions of Deterministic and Probabilistic Project Network Models. Ph.D. Thesis. Civil Engineering Department, College of Engineering, Univ. of Michigan, MI.
 Ponce de Leon, G. (2008). Project Planning using Logic Diagramming Method. Presented at the AACE International 52nd Annual Conference, Toronto, CA.
“LDM, with its embedded node construct and time-scaled v. schematic diagramming synergizes what PDM and ADM individually provide. LDM’s modeling of PDM logic through embeds treats PDM leads/lags as elapsed days of work related to the predecessor and successor, respectively.”
 Ponce de Leon, G. (1983). Overlapping Arrow Networks. Stratagem, A Project Controls Journal 1(2), 1-2.
Arrow networks can adapt to overlapping logic as well as precedence networks can by adding dummies for each relationship in an arrow diagram even if not required by dummy rules.
 Womack, J.P. & Jones, D.T. (2003). Lean Thinking: Banish Waste and Create Wealth in Your Corporation. New York, NY: Simon & Schuster, Inc.
In Lean Thinking versus Muda, the authors state “We are all born into a mental world of “functions” and “departments,” a commonsense conviction that activities are to be grouped by type so they can be performed more efficiently and managed more easily...Batches, as it turns out always means long waits…”
 Clough, R.H., Sears, G.A. & Sears, S.K. (2000). Construction Project Management. (4th Ed). New York, NY: John Wiley and Sons, Inc.
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