@InProceedings{GLN02, author = {Jean Goubault-Larrecq and S{\l}awomir Lasota and David Nowak}, title = {Logical Relations for Monadic Types}, booktitle = {Proceedings of the 15th Annual Conference of the European Association for Computer Science Logic (CSL'02)}, month = Sep, year = 2002, volume = 2471, pages = {553--568}, series = {LNCS}, publisher = {Springer-Verlag}, url = {http://link.springer.de/link/service/series/0558/papers/2471/24710553.pdf} }