Znanstvenostručni
časopis Hrvatskog društva za geometriju i grafiku Scientific and Professional Journal 
CONTENTS / SADRŽAJ  
Original scientific papers 

R. Garcia, D. Reznik: Family Ties: Relating Poncelet 3Periodics by their Properties  3 
H. Okumura: Semicircles in the Arbelos with Overhang and Division by Zero  19 
B. Odehnal: A Rarity in Geometry: a Septic Curve  25 
M. Šimić Horvath, V. Volenec: On Diagonal Triangle of Non Cyclic Quadrangle in Isotropic Plane  40 
M. Stavrić, A. Wiltsche, G. Weiss: Polyhedrons the Faces of which are Special Quadric Patches  45 
A. N. Zachos: Generalized Regularity and the Symmetry of Branches of "Botanological" Networks  53 
A. Yahya, J. Szirmai: Visualization of Sphere and Horosphere Packings Related to Coxeter Tilings by Simply Truncated Orthoschemes with Parallel Faces  64 
Reviews 

L. Weydemann, C. Clemenz, C. Preisinger: On the Structural Properties of Voronoi Diagrams  72 
A. Katalenić, A. Čižmešija, Ž. Milin Šipuš: Asymptotes of Plane Curves – Revisited  78 
C. Clemenz, L. Weydemann: Reflection Techniques in RealTime Computer Graphics  87 
ABSTRACTS / SAŽECI 