H. Pongracic
发表
S. J. Chapman,
Anthony Peter Whitworth,
A. Whitworth,
1995
.
H. Pongracic,
S. E. Byleveld,
H. Pongracic,
1996,
Publications of the Astronomical Society of Australia.
Joseph John Monaghan,
J. Monaghan,
J. Lattanzio,
1986
.
Joseph John Monaghan,
H. Pongracic,
1985
.