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Roach, Dennis; Neidigk, Stephen; Rice, Tom; Duvall, Randy; Paquette, Joshua A. (2015). "Development and Assessment of Advanced Inspection Methods for Wind Turbine Blades Using a Focused WINDIE Experiment". 33rd Wind Energy Symposium. doi:10.2514/6.2015-0998. ISBN978-1-62410-344-5. OSTI1242772.