1. Constant Minkowskian width in terms of double normals

   • Gennadiy Averkov

   Original paper Pages: 1 - 7

2. Some integral geometric results in the simply isotropic space

   • Adrijan Borisov
   • Margarita Spirova

   Original paper Pages: 8 - 21

3. On affine images of regular pentagons and pentagrams

   • Zvonko Čerin

   Original paper Pages: 22 - 34

4. Minding isometries of ruled surfaces in pseudo-Galilean space

   • Blaženka Divjak
   • Željka Milin Šipuš

   Original paper Pages: 35 - 47

5. Symmetric incidence groupoids

   • Herbert Hotje
   • Silvia Pianta
   • Elena Zizioli

   Original paper Pages: 48 - 60

6. The correlations of finite Desarguesian planes, Part I: Generalities

   • Barbu C. Kestenband

   Original paper Pages: 61 - 101

7. An upper bound for the minimum weight of dual codes of Figueroa planes

   • J. D. Key
   • M. J. de Resmini

   Original paper Pages: 102 - 107

8. A nullity condition for complex contact metric manifolds

   • Belgin Korkmaz

   Original paper Pages: 108 - 128

9. Hyperovals in Steiner systems

   • Alan C. H. Ling

   Original paper Pages: 129 - 135

10. Simplices with congruent k-faces

    • Horst Martini
    • Walter Wenzel

    Original paper Pages: 136 - 139

11. Harmonicity and gauge transformations in dimension 3

    • Marian-Ioan Munteanu

    Original paper Pages: 140 - 151

12. Antipodes sur un tétraèdre régulier

    • Joël Rouyer

    Original paper Pages: 152 - 170

13. Almost Hermitian 4-manifolds of pointwise constant anti-holomorphic sectional curvature

    • Takuji Sato

    Original paper Pages: 171 - 183

14. On 4-flattening theorems and the curves of Carathéodory, Barner and Segre

    • Ricardo Uribe-Vargas

    Original paper Pages: 184 - 192