Petersen, S.
(1995),
Energy price indices and discount factors for life-cycle cost analysis 1996 ::annual supplement to NIST Handbook 135 and NBS Special Publication 709, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.85-3273-10
(Accessed November 10, 2024)