Lahav, D.; Saad Falcon, J.; Kuehl, B.; Johnson, S.; Parasa, S.; Shomron, N.; Chau, D. H.; Yang, D.; Horvitz, E.; Weld, D. S.; Hope, T. A Search Engine for Discovery of Scientific Challenges and Directions. AAAI 2022, 36, 11982-11990.