1. A. G. Nikonenko, A Primer in Quantitative Histology (Kniga-Plyus, Kiev, 2013) [in Russian].
2. F. T. Lewis, Am. Sci. 34 (3), 359 (1946).
3. V. V. Smolyaninov, Mathematical Models of Biological Tissues Nauka, Moscow, 1980) [in Russian].
4. K. J. Dormer, Fundamental Tissue Geometry for Biologist (Cambridge Univ. Press, London, 1980).
5. V. M. Maresin, Spatial Organization of Embryogenesis (Nauka, Moscow, 1990) [in Russian].