Volume 4 (1991)

  • Sharon G. Boswell
    • Bounds on the number of $\Gamma$-operation edge substitutions required to transform a maximal planar graph into another, p.5
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  • L.H. Clark, R.C. Entringer, J.E. McCanna and L.A. SzĂ©kely
  • D.R. Stinson and L. Zhu
    • On the existence of three MOLS with equal-sized holes, p.33
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  • Marston Conder
  • E. Dawson, H. Gustafson and N. Davies
  • M.A. Forbes, J.N. Holt, P.J. Kilby and A.M. Watts
    • A matching algorithm with applications to bus operations, p.71
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  • Jennifer Seberry
    • Existence of SBIBD$(4k^2,2k^2\pm k,k^2\pm k)$ and Hadamard matrices with maximal excess, p.87
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  • Jennifer Seberry and Xian-Mo Zhang
    • Some orthogonal designs and complex Hadamard matrices by using two Hadamard matrices, p.93
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  • James Abello, Michael R. Fellows and John C. Stillwell
    • On the complexity and combinatorics of covering finite complexes, p.103
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  • Joan Cooper, Diane Donovan and Jennifer Seberry
  • D.R. Shier and M.H. McIlwain
    • Inclusion-exclusion, cancellation, and consecutive sets, p.121
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  • Charles J. Colbourn and Alexander Rosa
    • Leaves, excesses and neighbourhoods in triple systems, p.143
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  • C.C. Lindner, E. Mendelsohn and C.A. Rodger
    • The intersection problem for minimum coverings of $K_n$ by triples, p.179
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  • L. Caccetta and Purwanto
    • Deficiencies of $r$-regular $k$-edge-connected graphs, p.199
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  • Qui-rong Wu
  • Cheryl E. Praeger
    • On minimal symmetric automorphism groups of finite symmetric graphs, p.237
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  • R.G. Stanton
  • Heiko Harborth and Hartmut Weiss
  • Gerhard Behrendt
  • David G. Glynn
    • The construction of self-dual binary codes from projective planes of odd order, p.277
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  • M.E. Morley
    • The complements of some covering designs and questions on the overall significance, p.285
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