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Further we introduce methods to construct sets of minimal cardinality that have exactly four special directions for small values of <jats:italic>p<\/jats:italic>.<\/jats:p>","DOI":"10.1007\/s10623-024-01404-y","type":"journal-article","created":{"date-parts":[[2024,4,29]],"date-time":"2024-04-29T16:02:17Z","timestamp":1714406537000},"page":"2587-2597","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Special directions on the finite affine plane"],"prefix":"10.1007","volume":"92","author":[{"given":"Gergely","family":"Kiss","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5761-7579","authenticated-orcid":false,"given":"G\u00e1bor","family":"Somlai","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2024,4,29]]},"reference":[{"issue":"3","key":"1404_CR1","doi-asserted-by":"publisher","first-page":"109026","DOI":"10.1016\/j.jfa.2021.109026","volume":"281","author":"A B\u00edr\u00f3","year":"2021","unstructured":"B\u00edr\u00f3 A., Lev V.F.: Uncertainty in finite planes. 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