Alexander Beck
发表
R. Zanoli,
H. Kristensen,
F. Sinesio,
2015,
Organic Agriculture.
S. Padel,
K. Ulmer,
Adrian W. Müller,
2018
.
R. Zanoli,
H. Kristensen,
F. Sinesio,
2016,
Organic Agriculture.
Ursula Kretzschmar,
Marjo Särkkä-Tirkkonen,
Alexander Beck,
2010
.
E. Olsen,
Ø. Bergh,
F. Grati,
2023,
Aquaculture.
S. Padel,
C. Micheloni,
I. Rasmussen,
2014
.
Alexander Beck,
Ursula Kretzschmar,
Otto Schmid,
2006
.
Alexander Beck,
Ursula Kretzschmar,
Otto Schmid,
2004
.