+ wishlist Add to Cart The item has been added Author: Erwin K. Bruch The Boundary Element Method for Groundwater Flow (Lecture Notes in Engineering #70) [9783540544074] Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 49 12% 50 - 99 13% 100+ 14% List Price As Low as $109.99 Format: Paperback