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ESDU Data Item No 95011,
One-Dimensional Representation of Steady, Spatially Nonuniform Flow. An Equivalent Mean-value Set for Compressible Flow. Part 1 Implementation for an Ideal Calorically-Perfect Gas, ESDU International, issued 1995 and with amendments 1998.ESDU Data Item No 97029,
One-Dimensional Representation of Steady, Spatially Nonuniform Flow. An Equivalent Mean-value Set for Compressible Flow. Part 2 Implementation for an Ideal Thermally-Perfect Gas, ESDU International, issued 1998.