Celso C. Ribeiro Isabel Rosseti A Parallel GRASP Heuristic for the 2-Path Network Design Problem (Research Note). 922-926 2002 conf/europar/2002 Euro-Par http://link.springer.de/link/service/series/0558/bibs/2400/24000922.htm db/conf/europar/europar2002.html#RibeiroR02