1. "Periodic Differential Equations,";F. M. Arscott;Pergamon Press,1964
2. Determination of thermal conductivity tensor and heat capacity of insulating solids,;G. Backstrom;J. Phys. E: Sci. Instrum.,1977
3. Hot strip determination of the thermal conductivity tensor and heat capacity of crystals,;U. Brydsten;Int'l. J. Thermophysics,1983
4. "Conduction of Heat in Solids,";H. S. Carslaw;$2^\text{nd}$ edition,1959
5. "Inverse Problems for Partial Differential Equation,";V. Isakov;Springer,1998