Perry, C. and Greig, I.D. (1975) Estimating the Mean and Variance of Subjective Distributions in PERT and Decision Analysis. Management Sciences, 21, 1477-1480.
https://doi.org/10.1287/mnsc.21.12.1477

has been cited by the following article:

• TITLE: A Review of Activity Time Distributions in Risk Analysis

  AUTHORS: Enobong Francis Udoumoh, Daniel W. Ebong

  KEYWORDS: PERT, Project Network, Activity Duration, Probability Distributions

  JOURNAL NAME: American Journal of Operations Research, Vol.7 No.6, November 27, 2017

  ABSTRACT: Project Evaluation and Review Technique (PERT) alongside recent modifications is a popular and useful tool in project risk analysis. Over the past seven decades, there have been some modifications in PERT owing to the shift from beta distributed activity times to other activity time distributions. This paper presents a review of activity time distributions in risk analysis as found in literature up to date.