Enescu, Bogdan books & textbook
Mathematical Olympiad Treasures
Andreescu, Titu Enescu, Bogdan
Birkhäuser /2011-09-20 Hardcover / 261 Pages
isbn-10: 081768252X / isbn-13: 9780817682521
Balkan Mathematical Olympiads 19842006
Mircea Becheanu & Bogdan Enescu
Paperback
isbn-10: 9380663943 / isbn-13: 9789380663944
