@patent{ACP87a, <br>AUTHOR = {Auerbach, D.J. and Chen, T.C. and Paul, W.J.},<br>TITLE = {Three Address Instruction Data Processing Apparatus},<br>VOLUME = {227900}, <br>YEAR = {1987},<br>SERIES = {Patentblatt des Europäischen  Patentamtes},<br>EE = {http://www.freepatentsonline.com/EP0227900.html},<br>}