1. English summaries of mathematical proofs;Alexoudi,2004
2. Mathematics and proof presentation in Pcoq;Amerkad,2001
3. Assisted proof document authoring;Aspinall,2006
4. The CoRe calculus;Autexier,2005
5. A generic modular data structure for proof attempts alternating on ideas and granularity;Autexier,2006