0120-2812
0120-2812
S0120-28122007000100023
Colombia
Colombia
00
03
2007
00
03
2007
56
1
23
28
[
1980
491
]
[
1991
192p
]
[
1993
2a. ed
68-70
]
[
1994
v.11
261-74
]
[
1989
7º ed
277-9
]
[
1978
]
[
1989
447
]
[
1981
32
619-26
]
[
1987
64
59-68
]
[
1997
v.26
2761-7
]
[
1990
54
1013-6
]
[
1991
pp. 284-5
]
[
1998
421
]
[
1991
v:23
459-64
]
[
1980
12
29-33
]
[
2002
]
[
1983
15
303-9
]
[
1994
64
9-19
]
[
1999
]
[
1995
21
37-49
]
[
42
]
[
1985
17
11-6
]
[
Universidad de Nariño
2002
]