erc:
who: Allen, H. Julian
what: Notes on the Effect of Surface Distortions on the Drag and Critical Mach Number of Airfoils
when: 19430900
where: https://digital.library.unt.edu/ark:/67531/metadc279442/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://digital.library.unt.edu/ark:/67531/