Publication
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January 1978
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Constructing formal groups IV, V, VI, VII Tech Report
January 1978
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The linking of matroids by linking systems Article
Combinatorics (A. Hajnal and V.T. Sos, eds.) , 973-981.January 1978
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January 1978
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Inductive definitions, models of comprehension and invariant definability Article
Israel Journal of Mathematics, 221-238.January 1978
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The proportional representation problem in the Second Chamber (of the Dutch parliament): an approach via minimal distances Article
Statistica Neerlandica, 32(4), 163-179.January 1978
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January 1978
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January 1978