https://collec.repec.org/nodes/o/r/85.html
David Ortega is on CollEc
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https://cpl.thalesgroup.com/blog/author/dortega
David Ortega | Thales
david ortegathales
https://www.canr.msu.edu/people/david_ortega/?profileDisplayContent=related-work
David Ortega
davidortega