[MathOuvrage]
Quadratic Diophantine equations
/ Andreescu, Titu ; Andrica, Dorin.
-New York NY : Springer, 2015. - xviii, 211 p. ; 24 cm
ISBN 9780387351568
[IremOuvrage]
USA and international mathematical olympiads 2000
/ Ed. Andreescu, Titu ; Ed. Feng, Zuming.
-Washington, DC : Mathematical Association of America, 2001. - XIII-83 p. ; 23 cm
ISBN 9780883858042
[IremOuvrage]
Mathematical olympiads
/ Ed. Andreescu, Titu ; Ed. Feng, Zuming.
-Washington, D.C. : Mathematical Association of America, 2002. - XI-323 p. ; 23 cm
ISBN 9780883858059
[MathOuvrage]
Mathematical olympiads 1998-1999
/ Ed. Andreescu, Titu ; Ed. Feng, Zuming.
-Washington DC : Mathematical Association of America, 2000. - xii, 290 p. ; 23 cm