paper
5574
1981
5580
1981
5581
1981
5583
1981
5087
5584
1980
4944
2001
4945
1999
4946
1999
4967
2000
4969
4970
1999
4971
5071
1992
5078
1992
5079
1999
5080
1981
5081
5082
