CAMPOS-GARCIA, J. C.; MOLINAR-TABARES, M. E.; FIGUEROA-NAVARRO, C.  e  CASTRO-ARCE, L.. Approximate construction of new conservative physical magnitudes through the fractional derivative of polynomial-type functions: A particular case in semiconductors of type Al_xGa_1-xAs. Rev. mex. fis. [online]. 2020, vol.66, n.6, pp.874-880.  Epub 31-Jan-2022. ISSN 0035-001X.