Volume 25. No. 2 October, 2017 Contents J. L. Díaz-Barrero: Twenty Fifth Years of Octogon Mathematical Magazine View FullscreenSkip to PDF content A Quarter of Century for Octogon Mathematical Magazine View FullscreenSkip to PDF content Ovidiu T. Pop: Octogon Mathematical Magazine 25 years View FullscreenSkip to PDF content D. M. Batineu-Giurgiu and Neculai Stanciu: 25 Years of Octogon Mathematical Magazine Happy Birthday! View FullscreenSkip to PDF content J. L. Díaz-Barrero: Math Competitions Corner View FullscreenSkip to PDF content Ovidiu T. Pop: Review View FullscreenSkip to PDF content Proposed problems View FullscreenSkip to PDF content Open questions View FullscreenSkip to PDF content