J. Penfold
发表
P. F. Younger,
L. Ho,
M. Mignoli,
1994
.
Paul S. Smith,
T. Boroson,
S. Veilleux,
1993
.
D. Crampton,
J. Hutchings,
A. Cowley,
1983
.
R. Hilditch,
D. Kilkenny,
J. Penfold,
1979
.
J. Kallrath,
D. Terrell,
E. Milone,
1995
.
Gerard A. Kriss,
Bradley M. Peterson,
Shai Kaspi,
1996
.
Multiwavelength observations of short-timescale variability in NGC 4151 .1. Ultraviolet observations
Shai Kaspi,
V. T. Doroshenko,
Belinda J. Wilkes,
1996
.
J. Penfold,
1971
.
P. W. Hill,
D. Kilkenny,
J. Penfold,
1981
.
R. Hilditch,
D. Kilkenny,
J. Penfold,
1978
.