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"Blocking sets of Rédei type in projective Hjelmslev planes."
Ivan N. Landjev, Stoyan Boev (2010)
- Ivan N. Landjev, Stoyan Boev:
Blocking sets of Rédei type in projective Hjelmslev planes. Discret. Math. 310(15-16): 2061-2068 (2010)
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