1. Partial order planning: evaluating possible efficiency gains;Barrett,1992
2. On-line learning from search failures;Bhatnagar,1992
3. On-line learning from search failures;Bhatnagar;Mach. Learn.,1994
4. Incremental learning of control knowledge for nonlinear problem solving;Borrajo,1994
5. An explanation-based learning approach to incremental planning;Chien,1990