ABSTRACT
An illustration of a person in a small boat, calmly watching the sunset as winding white ripples stretch ahead, blending into a serene sky and water scene. https://www.w3.org/1999/xlink" content-type="colour" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003609766/53936eb1-bdf1-468e-bc16-f31a3fbae83f/content/fig3_79_1_C.jpg"/>
