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Hartmann, T., R. Jungclaus, and G. Saake,
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Jungclaus, R., R. J. Wieringa, P. Hartel, G. Saake, and T. Hartmann,
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Jungclaus, R., G. Saake, and C. Sernadas,
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Abstract
Kusch, J., P. Hartel, T. Hartmann, and G. Saake,
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Abstract