1
Published 1989
IET

2
Published 2008
IEEE

3
Published 2008
IEEE

4
Published 2004
IEEE

5
Published 2008
IEEE

6
Published 1989
IEEE

7
Published 1991
IEEE

9
Published 1993
IEEE

11
Published 1996
IEEE

14
Published 2010
IEEE

15
Published 2011
IEEE

16
Published 2010
IEEE

17
Published 2010
IET

18
Published 2008
IET

19
Published 2009
IET

20
Published 2010
IET