""
John Mark Kreikebaum, Blas Cabrera, Jeffrey J. Yen, Paul L. Brink, Matt Cherry, Astrid Tomada and Betty A. Young
J. Vac. Sci. Technol. B 33, 011203 (2015)
""
Emma Lewis, Bhaskar Mantha and Richard P. Barber Jr.
EPJ Photovoltaics 5, 50402 (2014)
""
J.J. Yen, B.A. Young, B. Cabrera, P.L. Brink, M. Cherry, R. Moffatt, M. Pyle, P. Redl, A. Tomada and E.C. Tortorici
Journal of Low Temperature Physics 176, 168 (2014)