Solomon Marcus Symmetry as a universal pattern Volume 20, Numbers 1-4, pages 011-022 (2009)
Jay Kappraff, Sergey V. Petoukhov Symmetries, generalized numbers and harmonic laws in matrix genetics Volume 20, Numbers 1-4, pages 023-049 (2009)
Tidjani Négadi A taylor-made arithmetic model of the genetic code and applications Volume 20, Numbers 1-4, pages 051-076 (2009)
Matthew X. He, Sergey V. Petoukhov The genetic code, symmetries and Hadamard matrices Volume 20, Numbers 1-4, pages 077-098 (2009)
Peeter Müürsepp The essence of symmetry in physics-like science Volume 20, Numbers 1-4, pages 099-112 (2009)
Takeshi Sugimoto How to present the heart of Newton’s principia to the layperson: A primer of the conic sections without Appollonius of Perga (awarded paper) Volume 20, Numbers 1-4, pages 113-144 (2009)
Annegret Haake, Haryani Winotosastro Teaching symmetry using traditional Javanese batik patterns Volume 20, Numbers 1-4, pages 145-160 (2009)
Szaniszló Bérczi New Curie-type and Coxeter-type composite and colored plane symmetry patterns in the ancient arts of Eurasia Volume 20, Numbers 1-4, pages 161-176 (2009)
Tsutomu Oguni, Eiko Kobayashi Japanese traditional patterns reproduced by educational programming system: Ukiyoe, family crests, sangaku and others Volume 20, Numbers 1-4, pages 177-190 (2009)
Robert E. Dewar Islamic girih tiles in their own right as a history lesson and design exercise in the classroom Volume 20, Numbers 1-4, pages 201-216 (2009)
Diane Humphrey, Dorothy Washburn The fabric of the mind: Preferences for symmetry patterns by weavers; Preliminary report Volume 20, Numbers 1-4, pages 217-225 (2009)
David E. Flesner Dynamic visualization of planar hyperbolic symmetry via the Klein model Volume 20, Numbers 1-4, pages 227-245 (2009)
David I. McCooey A non-self-intersecting polyhedral realization of the all-heptagon Klein map Volume 20, Numbers 1-4, pages 247-268 (2009)
Lajos Szilassi Locally regular toroids with hexagonal faces Volume 20, Numbers 1-4, pages 269-295 (2009)
László Vörös Space filling mosaics and (animated) plane-tiling patterns Volume 20, Numbers 1-4, pages 297-308 (2009)
Gábor Gévay Symmetric configurations and the different levels of their symmetry Volume 20, Numbers 1-4, pages 309-329 (2009)
Krystyna Burczyk, Wojciech Burczyk Where is a polyhedron? About symmetry in origami models Volume 20, Numbers 1-4, pages 331-343 (2009)