Christian Hansen
发表
Kirsten Schmieder,
Helmut Ermert,
Martin Scholz,
2007,
Ultrasound in medicine & biology.
Helmut Ermert,
Nils Hüttebräuker,
Wilko Wilkening,
2007,
Biomedizinische Technik. Biomedical engineering.
N. Huttebrauker,
Helmut Ermert,
Wilko Wilkening,
2007
.
N. Huttebrauker,
Helmut Ermert,
Alexander Schasse,
2009
.
Helmut Ermert,
Oliver Keitmann-Curdes,
Christian Hansen,
2004,
Ultrasonics.