Carvajal-Gámez, B. E., I. J. Guerrero-Moreno, and J. López-Bonilla. “Quaternions, 2x2 Complex Matrices and Lorentz Transformations”. BIBECHANA, vol. 12, Dec. 2014, pp. 30-34, doi:10.3126/bibechana.v12i0.11671.