N. Harper
发表
Phillip J. McKerrow,
N. Harper,
P. McKerrow,
2001
.
Phillip J. McKerrow,
Neil Lindsay Harper,
P. McKerrow,
1999,
1999 Third European Workshop on Advanced Mobile Robots (Eurobot'99). Proceedings (Cat. No.99EX355).
Neil Harper,
N. Harper,
2009
.