C.A Brebbia & L Skerget 
Boundary Elements and Other Mesh Reduction Methods XXX [PDF ebook] 

The major motivation behind the Boundary Element Method (BEM) was to reduce the dependency of analysis on the definition of meshes. This has allowed the method to expand naturally into new techniques such as Dual Reciprocity and all other Mesh reduction Methods (MRM). MRM and BEM continue to be very active areas of research with many of the resulti