1. Electr. Notes in Theor. Comp. Sci;A. Abel,2007
2. Abel, A., Coquand, T., Dybjer, P.: Normalization by evaluation for Martin-Löf Type Theory with typed equality judgements. In: Proc. of the 22nd IEEE Symp. on Logic in Computer Science (LICS 2007), pp. 3–12. IEEE Computer Soc. Press, Los Alamitos (2007)
3. Lecture Notes in Computer Science;A. Abel,2008
4. Lecture Notes in Computer Science;A. Abel,2008
5. Abel, A., Coquand, T., Pagano, M.: A modular type-checking algorithm for type theory with singleton types and proof irrelevance (full version) (2009), http://www.tcs.ifi.lmu.de/~abel/singleton.pdf