0873-6529
0873-6529
S0873-65292021000300057
10.7458/spp20219724910
Sweden
Poland
Portugal
Noruega
30
12
2021
30
12
2021
97
57
85
[
1975
19
417-40
]
[
1977
]
[
2014
]
[
1974
11
221-8
]
[
1974
19
5
5
277-97
]
[
1990
]
[
1994
]
[
2006
62
411-60
]
[
2008
]
[
1974
]
[
1985
]
[
1987
]
[
2000
34
4
4
379-406
]
[
2005
8
21
21
7-40
]
[
2006
3
31
31
16-45
]
[
2007
75-107
]
[
2008
3
39
39
3-44
]
[
2009
43
5
5
781-803
]
[
2009
43
5
5
805-32
]
[
2014
37
59
59
11-38
]
[
2016
6
195-207
]
[
2017
89
5
5
187-99
]
[
2009
]
[
2010
28
3
3
247-71
]
[
2002
28
1
1
197-220
]
[
1989
]
[
1959
]
[
1961
]
[
1969
]
[
1999
3
16
16
95-108
]
[
2002
10
21-44
]
[
2004
411-34
]
[
2005
203-14
]
[
1985
91
3
3
481-510
]
[
2016
29
4-5
4-5
99-124
]
[
1950
]
[
1998
]
[
1992
]
[
2017
]
[
1994
23
498-502
]
[
1960
]
[
1955
59
99-118
]
[
1979
]
[
2001
30
301-35
]
[
2012
40
145-74
]