Book reviews. - David Ratkowsky; Hans Fix; Harold L. Somers; Stig Johansson; Wilhelm Ott; Paul Bratley; Maribeth Henney; Michael E. Leesley (Comput. Humanit., 1982)

Book Reviews. - David Ratkowsky (Comput. Humanit., 1988)

A Simple Method for Measuring the Bilateral Symmetry of Leaves. - Peijian Shi 001; Xiao Zheng; David Ratkowsky; Yang Li 166; Ping Wang; Liang Cheng (Symmetry, 2018)

The Generalized Gielis Geometric Equation and Its Application. - Peijian Shi 001; David Ratkowsky; Johan Gielis (Symmetry, 2020)

A General Model for Describing the Ovate Leaf Shape. - Peijian Shi 001; Kexin Yu; Karl J. Niklas; Julian Schrader; Yu Song; Renbin Zhu; Yang Li 166; Hailin Wei; David Ratkowsky (Symmetry, 2021)

Effects of the Numerical Values of the Parameters in the Gielis Equation on Its Geometries. - Lin Wang; David Ratkowsky; Johan Gielis; Paolo Emilio Ricci; Peijian Shi 001 (Symmetry, 2022)