42
IET

43
IET

44
Published 2003
IET

45
Published 2008
IET

46
Published 1998
IET

47
Published 2002
IET

48
Published 2003
IET

51
Published 2005
IEEE

52
Published 2002
IEEE

53
Published 1998
IET

54
Published 1990
IET

55
Published 2011
IEEE

56
Published 2010
IEEE

57
Published 2008
IEEE

58
Published 2009
IEEE

59
Published 2006
IEEE

60
Published 1989
IEEE