@article{Sermeus:7973,
      author        = "Sermeus, Jan and Keppens, Willem and Van Winckel, Hans and
                       Van Dooren, Wim and De Cock, Mieke",
      title         = "{Students' use of distance to explain the apparent size of
                       the Sun and Moon. }",
      month         = "Sep",
      year          = "2025",
}