* The fields of real and complex numbers with a multiplicative subgroup (joint work with L. van den Dries), Proceedings of London Mathematical Society, 93, (2006), pp. 43--81. (.pdf)

  * Thorn independence in the field of real numbers with a small multiplicative group (joint work with A. Berenstein and C. Ealy),  Annals of Pure and Applied Logic, 150, (2007), pp. 1--18. (.pdf)

  * Mann pairs (joint work with L. van den Dries),Trans. Amer. Math. Soc. 362, (2010), 2393-2414. (.dvi)

  * Definable sets in Mann pairs (with L. van den Dries), To appear in comm. Alg. (.dvi)

  * Dependent pairs (with P. Hieronymi), To appear in J. Symbolic Logic. (.pdf)

  * The real field with the rational points of an elliptic curve (with P. Hieronymi), to appear in Fund. Math.  (.pdf)

  * Rational solutions of polynomial-exponential equations, to appear in Int. J. Number Theory (.pdf) 

  * Generic Points on Exponential Curves (with Amador Martin-Pizarro), in preparation.
 
  * The real field with two multiplicative subgroups (.pdf)

  * The field of real numbers with a small subgroup of the circle group (.pdf)

  *  Model theory of fields with multiplicative subgroups (.dvi)

  * A talk on the Small Multiplicative subgroups of Fields (.pdf Oxford) (.pdf Tecnico)

  * A talk on dependent pairs (.dvi)

  * Notes on "stable Domination and indepedence in ACVF" (.dvi)

  * A talk on "Mann pairs" (Lisbon)  (BogotÁ)   (NY)

  * A talk around "PsuedoExponentiation" (Lisbon)  (BogotÁ)  (PT)

  * A talk on a proof of Infinite Helly's Theorem (.PDF)