Alsina-Pages RM, Freixes M, Orga F, Foraster M, Labairu-Trenchs A. Perceptual evaluation of the citizen's acoustic environment from classic noise monitoring. Cities & health. 2020 Mar 11;5(1-2):145-9. doi: 10.1080/23748834.2020.1737346
Phanikumar CV, Maitra B. Willingness-to-pay and preference heterogeneity for rural bus attributes. J Transp Eng A-Syst. 2007 Jan;133(1).
Fleming AD, Xia X, McDicken WN, Sutherland GR, Fenn L. Myocardial velocity gradients detected by Doppler imaging. Br J Radiol. 1994 Jul 1;67(799):679-88. doi: 10.1259/0007-1285-67-799-679