Fabrizio Baiardi Primo Becuzzi Sarah Chiti Paolo Mori Laura Ricci A Hierarchical Approach to Irregular Problems (Research Note). 218-222 2000 conf/europar/2000 Euro-Par http://link.springer.de/link/service/series/0558/bibs/1900/19000218.htm db/conf/europar/europar2000.html#BaiardiBCMR00