function write_ref() { document.write("

"); document.write("

$\"Graphics\"$
Graphics

"); document.write("

$\"Recursion\"$
Recursion

"); document.write("

$\"Reflexivity\"$
Reflexivity

"); document.write("

$\"Repetition\"$
Repetition

"); document.write("

$\"Reuse\"$
Reuse

"); document.write("

$\"Vision\"$
Vision

"); document.write("

"); document.write("

"); document.write("

$\"Abstract\"$
Abstract

"); document.write("

$\"Classify\"$
Classify

"); document.write("

$\"Components\"$
components

"); document.write("

$\"Concept\"$
Concept

"); document.write("

$\"Emotions\"$
Emotions

"); document.write("

$\"Applied\"$
Applied

"); document.write("

"); } write_ref();