Alvarez-Aros , E.L., Bernal-Torres, C.A. and Sánchez Tovar , ‪Yesenia 2022. External collaboration of open innovation and financial performance of SMES in Tamaulipas, Mexico. RAE - Revista de Administracao de Empresas . 62, 3 (Feb. 2022), e2020–0483. DOI:https://doi.org/10.1590/S0034-759020220301.