Keywords: Gray numbers
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Journal Articles
Engineering, Construction and Architectural Management (2019) 26 (9): 2107–2119.
Published: 27 June 2019
...Samira Nadafi; Seyed Hamed Moosavirad; Shahram Ariafar Purpose The purpose of this paper is to determine the project completion time and cost under non-deterministic conditions using interval gray numbers (IGNs). Design/methodology/approach The earned value management (EVM) method based...

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