An introduction to quadrilateral geometry
Disponibilitate: nedisponibila
OCTOGON - Mathematical magazine, Vol.11, No. 1, April 2003
Disponibilitate: nedisponibila
OCTOGON - Mathematical magazine, Vol.13, No. 1 A, April 2005
Disponibilitate: nedisponibila
OCTOGON - Mathematical magazine, Vol.13, No. 2, October 2005
Disponibilitate: nedisponibila
201 analysis math problems
Disponibilitate: in curs de aparitie
Selected problems for the mathematical olympiads
Disponibilitate: in curs de aparitie