Reinhard Lüling Francisco Cortes Gomez Norbert Sensen Parallel Interactive Media Server Systems. 149-166 http://link.springer.de/link/service/series/0558/bibs/1521/15210149.htm 1998 conf/sofsem/1998 SOFSEM db/conf/sofsem/sofsem1998.html#LulingGS98