A Cautionary Tale. - Robert R. Korfhage; Jing-Jye Yang (SIGIR Forum, 1991)

Query Improvement in Information Retrieval Using Genetic Algorithms - A Report on the Experiments of the TREC Project. - Jing-Jye Yang; Robert R. Korfhage; Edie M. Rasmussen (TREC, 1992)

Query Optimization in Information Retrieval Using Genetic Algorithms. - Jing-Jye Yang; Robert R. Korfhage (ICGA, 1993)