2
Working paper icon

3
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11
Journal article icon

12
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16
Conference item icon

18
Journal article icon

20
Journal article icon

21
Thesis icon

32
Journal article icon

35
Dataset icon

36
Dataset icon

38
Internet publication icon

46
Journal article icon

48
Journal article icon

51
Journal article icon

53
Journal article icon

58
Dataset icon

61
Journal article icon

67
Journal article icon

72
Journal article icon

74
Journal article icon

76
Journal article icon

77
Journal article icon

79
Journal article icon

83
Working paper icon

88
Working paper icon

90
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