Abstract
The translation planes with spreads in PG(3, q) that admit at least two Baer groups of order q−1 are classified.
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Biliotti, M., Johnson, N.L. Maximal Baer groups in translation planes and compatibility with homology groups. Geom Dedicata 59, 65–101 (1996). https://doi.org/10.1007/BF00181527
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DOI: https://doi.org/10.1007/BF00181527