@misc {MATHEDUC.02406442,
    author       = {Kraemer, A. and Bergold, H.},
    title        = {Cubes in a cubic grid. Wuerfel im kubischen Gitter.},
    howpublished = {Didakt. Math. (1991) v. 19(1) p. 40-49. [ISSN 0343-5334]},
    year         = {1991},
    msc2010      = {H64xx (G74xx G44xx)},
    identifier   = {1991j.02284},
}