1. Theoretical concentration profile from a two-step field-assisted diffusion process in glass
2. , and , submitted to Solid State Ionics.
3. and , to be published.
4. and , Fortschritte der Physik. Chemie, Vol. 1, Dr. Dietrich Steinkopff Verl., Darmstadt 1972.
5. and , Taschenbuch der Mathematik, Izd. Nauka, Moskau and B. G. Teubner, Leipzig 1979.