books.google.com - Mathematician R.H. Bing laid the foundation for a number of areas of topology. Many of his papers have continued to serve as a source of major theoretical developments and concrete applications. One example was Michael H. Freedman's use of Bing's Shrinking Criterion to solve the four-dimensional Poincare...http://books.google.com/books/about/The_Collected_Papers_of_R_h_Bing.html?id=NnBQ0xp_rUcC&q=finite+number&utm_source=gb-gplus-shareThe Collected Papers of R.h. Bing