. . "GeometrĂ­a de los nĂºmeros." . . . . "Fascinating fibonaccis : mystery and magic in numbers"@en . "Fascinating fibonaccis : mystery and magic in numbers" . . . . "Fascinating Fibonacci : mystery and magic in numbers" . . . "Fibonacci sequences occur in pinecones and poems, ancient art and modern computers, in the solar system and stock market - Occurence in natural phenomena - Mathematical properties - Historical perspective." . . . . . . "Proporciones (arte)" . .