1. Une introduction aux motifs (motifs purs, motifs mixtes, périodes);André,2004
2. Rational approximations for Euler Constant and Recurrence Relations,2007
3. A.I. Aptekarev, On linear forms containing the Euler constant, prépublication, disponible ici http://arXiv.org/abs/0902.1768, 2009
4. Multiple orthogonal polynomials for classical weights;Aptekarev;Trans. Amer. Math. Soc.,2003
5. Analytic theory of singular difference equations;Birkhoff;Acta Math.,1932