A Bidirectional Heuristic Search Technique for Web Service Composition. - Nilesh Ukey; Rajdeep Niyogi; Alfredo Milani; Kuldip Singh (ICCSA (4), 2010)

A Bidirectional Heuristic Search for web service composition with costs. - Nilesh Ukey; Rajdeep Niyogi; Kuldip Singh; Alfredo Milani; Valentina Poggioni (Int. J. Web Grid Serv., 2010)