V. Helbig
发表
E. Passoth,
P. Kudrna,
C. Csambal,
1997
.
V. Helbig,
J. Rohe-Hansen,
1992
.
V. Helbig,
K. Nick,
1986
.
W. Schade,
V. Helbig,
Z. Stryla,
1989
.
V. Helbig,
J. Rudolph,
1982
.
V. Helbig,
D. Kelleher,
W. Wiese,
1993
.
V. Helbig,
J. Richter,
K. Nick,
1984
.
V. Helbig,
T. Lüdtke,
1990
.
V. Helbig,
K. Nick,
1981
.
W. Schade,
V. Helbig,
B. Mundt,
1988
.
V. Helbig,
J. Rudolph,
1982
.
V. Helbig,
J. Rudolph,
1982
.
V. Helbig,
J. Rudolph,
1982
.
W. Schade,
V. Helbig,
G. Langhans,
1995
.
V. Helbig,
K. Nick,
1992
.
V. Helbig,
K. Nick,
1986
.
V. Helbig,
D. Kelleher,
W. Wiese,
1975
.
V. Rohde,
V. Helbig,
F. Greiner,
1989
.
V. Helbig,
2006
.
V. Helbig,
C. Thonmsen,
1991
.
V. Helbig,
1988
.
W. Schade,
V. Helbig,
G. Langhans,
1987
.
V. Helbig,
K. Nick,
1985
.
V. Helbig,
D. Kelleher,
W. Wiese,
1976
.
V. Helbig,
K. Nick,
1984
.
W. Schade,
V. Helbig,
G. Langhans,
1993
.
V. Helbig,
K. Nick,
1983
.