For a reference published in 2001 (before the patent was filed): http://books.google.com/books?id=r_cecYD4AKkC&lpg=PA413&...
Also note that a doubly linked list is described by claim one.
Sure it is: one list with multiple links is the exact same thing as multiple different lists that coincidentally contain the same items.
For a reference published in 2001 (before the patent was filed): http://books.google.com/books?id=r_cecYD4AKkC&lpg=PA413&...
Also note that a doubly linked list is described by claim one.