THE NEW BOOK ALGEBRAIC COMPUTABILITY AND ENUMERATION MODELS: RECURSION THEORY AND DESCRIPTIVE COMPLEXITY, WRITTEN BY DR. CYRUS F. NOURANI, WILL BE AVAILABLE THIS SPRING. http://appleacademicpress.com/title.php?id=9781771882477 [1] Links: ------ [1] http://appleacademicpress.com/title.php?id=9781771882477