Recording transactions using a chronological list superimposed on an indexed list. A transaction log of transaction entries is maintained as a data structure logically organized as a chronological list superimposed on an indexed list. In one aspect of the invention, the transaction log is implemented...http://www.google.de/patents/US6286011?utm_source=gb-gplus-sharePatent US6286011 - System and method for recording transactions using a chronological list superimposed on an indexed list
