E. Christoffel

发表

F. Fetting, E. Christoffel, H. Vierrath, 1975 .

A. Slaoui, E. Christoffel, L. Debarge, 1997, Conference Record of the Twenty Sixth IEEE Photovoltaic Specialists Conference - 1997.

A. Goltzené, E. Christoffel, S. Benakki, 1988 .

A. Slaoui, A. Zerga, E. Christoffel, 2003, 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of.

Z. Kuźnicki, L. Wu, E. Christoffel, 1996, Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996.

F. Fetting, E. Christoffel, H. Vierrath, 1975 .

E. Christoffel, Karl‐H. Röbschäger, 1980 .

E. Christoffel, Karl-H. Röbschläger, 1979 .