@misc{indiciaeca3b6b5c716d, title = {The Heliophysics Data Environment, Virtual Observatories, NSSDC, and SPASE}, author = {Thieman, James and Grayzeck, Edwin and Roberts, Aaron and King, Todd}, year = {2010}, url = {https://ntrs.nasa.gov/citations/20110006324}, note = {Source identifier: 20110006324} }