An Algorithm to Determine Potential Systems in Mathematica. - Gernot Haager; Gerd Baumann; Theo F. Nonnenmacher (J. Symb. Comput., 1995)

Fractional Driftless Fokker-Planck Equation with Power Law Diffusion Coefficients. - Norbert Südland; Gerd Baumann; Theo F. Nonnenmacher (CASC, 2001)