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Meyer auf der Heide, Friedhelm. “On Genuinely Time Bounded Computations.”10.1007/bfb0028969__STACS 89, 1989, doi:10.1007/bfb0028969.

Meyer auf der Heide, Friedhelm, and Rolf Wanka. “Time-Optimal Simulations of Networks by Universal Parallel Computers.”10.1007/bfb0028978__STACS 89, 1989, doi:10.1007/bfb0028978.

Meyer auf der Heide, Friedhelm. “Computing Minimum Spanning Forests on 1- and 2-Dimensional Processor Arrays.”10.1007/bfb0028983__STACS 89, 1989, doi:10.1007/bfb0028983.

Fuchssteiner, Benno, and Gudrun Oevel. “Geometry and Action-Angle Variables of Multi Soliton Systems.” Rev. Math. Phys., no. 1, 1989, pp. 415–79.

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Wunderlich, Hans-Joachim, and Sybille Hellebrand. “The Pseudo-Exhaustive Test of Sequential Circuits.”10.1109/test.1989.82273__IEEE International Test Conference (ITC’89), IEEE, 1989, pp. 19–27, doi:10.1109/test.1989.82273.

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Schroeter-Wittke, Harald. “Das Besondere Buch: Komm, Herr, Segne Uns. Texte Und Melodien von Dieter Trautwein Und Befreundeten Autoren, Dazu Übertragungen von Liedern Und Liturgischen Gesängen Aus Der Ökumene von Ursula Und Dieter Trautwein.” Der Evangelische Erzieher, vol. 41, 1989, pp. 264–67.

Schroeter-Wittke, Harald. “Bonhoeffer-Requiem. Eindringlich, Nicht Aufdringlich.” Kirchentag ’89. Berichte Und Materialien Aus Berlin. , edited by Rüdiger Runge, 1989, pp. 223–26.

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