CL-BTREE
Copyright (c) 2008 Sami Makinen

B-Tree implemented in Common Lisp. Stores key/value pairs onto disk
based data structure. Current implementation has been tested with
SBCL. Project was originally at alien-consader.org but is now made
available at SourceForge.

cl-btree depends on following projects: 
  - cl-binary-file (http://cl-binary-file.sourceforge.net),
  - cl-swap-file (http://cl-swap-file.sourceforge.net),

cl-btree no longer depends on following projects: 
  - cl-unit-test (http://cl-unit-test.sourceforge.net),