title typo: "Purely Functional Data Structure" -> "Purely Functional Data Structures" (pluralization)
reads a bit weird otherwise - sounds like it's discussing a particular purely functional data structure when it's actually a survey of many (pretty much the canonical survey of them, in fact).
reads a bit weird otherwise - sounds like it's discussing a particular purely functional data structure when it's actually a survey of many (pretty much the canonical survey of them, in fact).