Published in Phegea, in 1992, in volume 20, issue 1, pages 1-4
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Published in Phegea, in 1992, in volume 20, issue 1, pages 11-34
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Published in Phegea, in 1992, in volume 20, issue 1, pages 35-39
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Published in Phegea, in 1992, in volume 20, issue 1, pages 41-44
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Published in Phegea, in 1992, in volume 20, issue 2, pages 45-60
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Published in Phegea, in 1992, in volume 20, issue 2, pages 61-67
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Published in Phegea, in 1992, in volume 20, issue 2, pages 69-73
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Published in Phegea, in 1992, in volume 20, issue 2, pages 75-78
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Published in Phegea, in 1992, in volume 20, issue 2, pages 79-80
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Published in Phegea, in 1992, in volume 20, issue 2, pages 80
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Published in Phegea, in 1992, in volume 20, issue 2, pages 81-94
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Published in Phegea, in 1992, in volume 20, issue 2, pages 95-103
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Published in Phegea, in 1992, in volume 20, issue 3, pages 105-107
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Published in Phegea, in 1992, in volume 20, issue 3, pages 109-112
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Published in Phegea, in 1992, in volume 20, issue 3, pages 113-114
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Published in Phegea, in 1992, in volume 20, issue 3, pages 115-119
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Published in Phegea, in 1992, in volume 20, issue 3, pages 121-123
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Published in Phegea, in 1992, in volume 20, issue 3, pages 125-128
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Published in Phegea, in 1992, in volume 20, issue 4, pages 129-130
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Published in Phegea, in 1992, in volume 20, issue 4, pages 131-135
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Published in Phegea, in 1992, in volume 20, issue 4, pages 137-150
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Published in Phegea, in 1992, in volume 20, issue 4, pages 151-154
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Published in Phegea, in 1992, in volume 20, issue 4, pages 155-159
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