@misc{indiciae26e61e17e44c, title = {Description and flight performance of two systems for two-segment approach}, author = {Wehrend, W. R. and Shigemoto, F. H. and Bourquin, K. R.}, year = {1974}, url = {https://ntrs.nasa.gov/citations/19740058910}, note = {Source identifier: 19740058910} }