Za poljuben kompakten pravokoten polieder ▫$R$▫ v prostoru Lobačevskega ▫${\mathbb H}^3$▫ naj ▫${\rm{vol}}(R)$▫ označuje njegovo prostornino in ▫${\rm{vert}}(R)$▫ število njegovih oglišč. Atkinson je ...nedavno našel zgornjo in spodnjo mejo za vrednosti ▫${\rm{vol}}(R)$▫, izraženi s pomočjo ▫${\rm{vert}}(R)$▫. S konstrukcijo dvoparametrične družine poliedrov v članku dokažemo, da je asimptotična zgornja meja ▫$5v_3/8$▫, kjer ▫$v_3$▫ označuje prostornino idealnega pravilnega tetraedra v ▫${\mathbb H}^3$▫, dvojna limitna točka kvocientov ▫${\rm{vol}}(R)/{\rm{vert}}(R)$▫. Poleg tega v članku izboljšamo spodnjo mejo za primer, ko je ▫${\rm{vert}}(R) \leqslant 56$▫.
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