@misc{indiciae9cd1cb6f1167, title = {Disaster warning system: Satellite feasibility and comparison with terrestrial systems. Volume 1: Executive summary}, author = {Spoor, J. H. and Hodge, W. H. and Fluk, M. J. and Bamford, T. F.}, year = {1974}, url = {https://ntrs.nasa.gov/citations/19760021180}, note = {Source identifier: 19760021180} }