Marin-Garcia, J. A., J. J. Garcia-Sabater, J. P. Garcia-Sabater, and J. Maheut. “Protocol: Triple Diamond Method for Problem Solving and Design Thinking. Rubric Validation”. WPOM-Working Papers on Operations Management, vol. 11, no. 2, Dec. 2020, pp. 49-68, doi:10.4995/wpom.v11i2.14776.