Page 11:   Section "A Binary Trie", in the second paragraph "In a trie, a node on
level l ..."   letter "l" should be in italic.

Page 12:   In figure 9, the right child of the root node should be labeled with "d", instead
of the wrong label "a".

Page 13:   In figure 10, internal node marked as "d" should not be marked as prefix,
i.e., The node should be white and without the "d" label.

Page 15:   In the first paragraph "We will see later how to replace, in a controlled
way, binary subtries that are unnecessary full subtries" should read "We will
 see later how to replace, in a controlled way, binary subtries that
are not necessarily full subtries".

Page 17:   In the first paragraph the sentence "The LC trie is traversed as is the
 basic multibit trie." should read "The LC trie is traversed as in the basic
multibit trie."

Page 19:   In figure 19, left tick marks for the basic intervals I2 and I7 are missing.
They should be just before "8" and "24", respectively.