@book{ZADB06Similarity,
   author = "Pavel Zezula and Giuseppe Amato and Vlastislav Dohnal and Michal Batko",
   title = "Similarity Search: The Metric Space Approach",
   publisher = "Springer",
   series = "Advances in Database Systems",
   volume = "32",
   year = "2006",
   isbn = "0-387-29146-6",
}