“…At higher temperatures, the measurements of Douslin et al (23) and Mamedov and Mamedov (24) deviate by up to |8 · 10 −4 · ρ| from our measurements. The values of Fenghour et al (35) show increasing systematic deviations from our results with rising temperature, but they are within the given uncertainty of | (5 to (23) ∇, Mamedov and Mamedov; (24) £, Vennix et al; (25) , Roe; (26) , Goodwin; (27) × − | , Achtermann et al; (29) , Achtermannn et al; (30) , Kleinrahm et al; (18) , Pieperbeck et al; (32) , Jaeschke and Hinze (33) (optical measurements); , jaeschke and Hinze (33) (Burnett measurements); , Händel et al; (19) +, Achtermann et al; (34) -| | , Fenghour et al; (35) , Nowak et al (20) The grey area corresponds to the experimental uncertainty of the measurements in this work. (22) 1958 118 273 to 423 1.8 to 26 0.02 to 0.05 a Douslin et al (23) 1964 374 273 to 623 1.6 to 41 0.05 to 0.1 a Mamedov and Mamedov (24) 1969 84 294 to 478 1.4 to 21 0.1 to 0.18 a Vennix et al (25) 1970 261 150 to 275 1.5 to 70 0.1 a Roe et al (26) 1972 82 156 to 291 0.2 to 10 0.02 to 0.05 Goodwin et al (27) 1974 554 92 to 300 0.3 to 35 0.1 to 0.2 a Trappeniers et al (28) 1979 472 273 to 423 1.8 to 260 0.03 to 0.05 a Achtermann et al (29) 1982 71 273 to 293 0.1 to 7.7 0.1 Achtermann et al (30) 1982 68 273 (34) 1992 654 273 to 373 0.5 to 34 0.05 Fenghour et al (35) 1995 178 · ρ|.…”