Ramón Herrera V., J., and B. Mena. “A Note on Newtonian and Non-Newtonian Oscillatory Pipe Flows”. Revista Mexicana De Física, vol. 46, no. 6, Jan. 2000, pp. 566-71, https://rmf.smf.mx/ojs/index.php/rmf/article/view/3014.