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1Published 1989Subjects:TEXT
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2Subjects:TEXT
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3
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4Subjects: “…working time…”
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5
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6
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7
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8Subjects:TEXT
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9Subjects:TEXT
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10
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11Published 1992Subjects:TEXT
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12Subjects: “…arrangement of working time…”
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13
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14Subjects:TEXT
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15
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16Subjects: “…working time…”
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17
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18
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19
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20