@misc{indiciae8c39fc64a464, title = {Using hybrid expert system approaches for engineering applications}, author = {Allen, R. H. and Boarnet, M. G. and Culbert, C. J. and Savely, R. T.}, year = {1987}, url = {https://ntrs.nasa.gov/citations/19870052639}, note = {Source identifier: 19870052639} }