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3855 documents found.
Published:
| Vunderink, R.A.F. & Sanders, A.F.
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| Egerton, M.B. and Rigby, D.
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| Beesley, M.E.
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| Centraal Bureau voor de Statistiek.
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| Bly, P.H.
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| -
Published:
| Wagon, D.J. & Baggaley, D.A.
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| Denney, R.C.
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| Smith, L.H.
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| Parker, G.B. & Blackledge, D.A.