1. Simulated Annealing and Boltzmann Machines: A Stochastic Approach to Combinatorial Optimization and Neural Computing;Aarts,1989
2. Statistical cooling: a general approach to combinatorial optimisation problems;Aarts;Philips Journal of Research,1985
3. Refinement operator can be (weakly) perfect;Badea,1999
4. A refinement operator for theories;Badea,2001
5. Refining complete hyphotesys in ILP;Bratko,1999