Juanjuan Jiang Juha Lipponen Petri Selonen Tarja Systä UML-Level Analysis and Comparison of Web Service Descriptions. 236-240 2005 conf/csmr/2005 CSMR http://csdl.computer.org/comp/proceedings/csmr/2005/2304/00/23040236abs.htm db/conf/csmr/csmr2005.html#JiangLSS05