"The 17 papers show a tremendous range both in subject and depth of coverage. The list of chapter authors is impressive and only serves to illustrate the considerable influence of these two scientists. The variety of authors results in a wide range of styles and quality of writing. The level of mathematical sophistication also varies. There will be something for everyone in this collection. Several of the chapters represent a good starting point for graduatestudents looking for an introduction to a particular topic. --Journal of Environmental Quality"The 17 papers show a tremendous range both in subject and depth of coverage. The list of chapter authors is impressive and only serves to illustrate the considerable influence of these two scientists. The variety of authors results in a wide range of styles and quality of writing. The level of mathematical sophistication also varies. There will be something for everyone in this collection. Several of the chapters represent a good starting point for graduatestudents looking for an introduction to a particular topic."--Journal of Environmental Quality