ELECTRONIC	u t a h dot e   d   u   s l a s h   t i l d e   m i c h a e l   s l a s h   l e a v i n g dot h t m l s i g g r a p h	u t a h dot e   d   u   s l a s h   t i l d e   m i c h a e l   s l a s h   l e a v i n g dot h t m l s i g g r a p h	1