Therefore, hexagonal cells can be divided into rhomb-shaped cells (three rhombs per one hexagon; 12 rhombs per one hexagon, etc.).
V.P. Bereznev 2016, 'Nodal SN-method for HEX-Z geometry', Nuclear Energy and Technologyhttp://www.sciencedirect.com/science/article/pii/S245230381630005X. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)