Martinez-Tomas, Juan, and Juan A. Marin-Garcia. “Protocol: What Does the Wage Structure Depend On? Evidence from the INE Salary National Survey (pilot Study With 2006 Data)”. WPOM-Working Papers on Operations Management 10, no. 1 (June 6, 2019): 70–103. Accessed December 6, 2022. http://ojs.upv.es/index.php/WPOM/article/view/11753.