@misc{indiciae0d608969658d, title = {Enhancing the ISIS-I Topside Digital Ionogram Database}, author = {Benson, Robert F. and Bilitza, Dieter and Fung, Shing F. and Truhlik, Vladimir and Wang, Yongli}, year = {2018}, url = {https://ntrs.nasa.gov/citations/20190002325}, note = {Source identifier: 20190002325} }