You can find new copies at in Serbia, or via Kupindo and Limundo for used versions.

: A popular alternative for free downloads of the manual. Matematičke formule, Dragoslav Herceg - Antikvarna knjiga

For decades, students in the Balkans have passed around this collection like a secret map. It doesn't waste time with long-winded theories; instead, it provides the "skeleton" of the universe: The Geometry of Chaos

: Combinatorics, linear algebra, probability, statistics, and algebraic structures. Where to Find it

His work spans:

The physical book is typically a 54-page to 87-page brochure or spiral-bound volume. While the physical edition is sold at retailers like