(1)
BerezovskyA. A.; KerefovA. A.; Shkhanukov-LafishevM. K. Boundary-Value Problems for the Heat Conduction Equation With a Fractional Derivative in the Boundary Conditions. Difference Methods for Numerical Realization of These Problems. Ukr. Mat. Zhurn. 1993, 45, 1289–1398.