A. Vella
发表
Stephen J. Pride,
Alfred D. Vella,
S. J. Pride,
1984
.
H. Gupta,
A. Vella,
Iain McLaren,
2007
.
Osei Adjei,
Alfred Vella,
O. Adjei,
2000,
ICMI.
Alfred Vella,
Dominic,
A. Vella,
2003,
The Mathematical Gazette.
Himanshu Gupta,
Alfred Vella,
Iain McLaren,
1997,
BNCOD.
D. Vella,
J. Wolf,
A. Vella,
2005,
The Mathematical Gazette.