1. The On-Line Encyclopedia of Integer Sequences, published online at http://oeis.org, 2010.
2. Einige aus Funktionalgleichungen zweier Veränderlichen ableitbare Differentialgleichungen;Aczél;Acta Univ. Szeged. Sect. Sci. Math.,1950
3. M. Aschenbrenner, W. Bergweiler, Juliaʼs equation and differential transcendence, manuscript, 2010.
4. Asymptotic differential algebra;Aschenbrenner,2005
5. Liouville closed H-fields;Aschenbrenner;J. Pure Appl. Algebra,2005