1659-2913
1659-2913
S1659-29132015000200147
00
12
2015
00
12
2015
34
2
147
157
[
2002
2
329-42
]
[
2012
30
3
3
49-55
]
[
2008
20
4
4
365-76
]
[
2002
]
[
2005
5
2
2
55-66
]
[
2002
111
2
2
]
[
2005
2
]
[
2003
14
4
4
455-63
]
[
IBM Corp
2013
]
[
1985
]
[
2005
]
[
2011
2
1
1
215-24
]
[
2001
284
1689-95
]
[
2013
24
1-13
]
[
1994
59
2/3
2/3
28-52
]
[
2002
14
3
3
1-26
]