D. C. Helm
发表
D. C. Helm,
1982
.
M. Widdowson,
T. Burbey,
J. Hole,
2005
.
D. C. Helm,
J. Jackson,
J. Brumley,
2004,
Geofísica Internacional.
Yi Liu,
D. C. Helm,
2008
.
D. C. Helm,
1984
.
T. Burbey,
D. C. Helm,
1999
.
Jiang Li,
D. C. Helm,
2001
.
D. C. Helm,
1987
.
D. C. Helm,
1994
.
Yi Liu,
Yi Liu,
Donald C. Helm,
2008
.
D. C. Helm,
2013
.
Donald C. Helm,
D. C. Helm,
1975
.
Zhuping Sheng,
Zhuping Sheng,
Jiang Li,
2003
.
D. C. Helm,
1994
.
Donald C. Helm,
D. C. Helm,
1976
.
D. C. Helm,
1978
.
Jiang Li,
D. C. Helm,
1998
.