Ralf Köhler
发表
Ulrich Hopp,
Phillip J. MacQueen,
Gary J. Hill,
2006,
SPIE Astronomical Telescopes + Instrumentation.
Ralf Köhler,
Ernst Merk,
Reinhold Wanner,
2003
.
Ralf Köhler,
Hans Riegler,
H. Riegler,
2007
.
Maria Raposo,
Osvaldo N Oliveira,
Ralf Köhler,
2010,
Journal of colloid and interface science.