• Machine assisted proofs in the theory of monadsAltenkirch, Thorsten; Chapman, James; Uustalu, Tarmo21st Nordic Workshop on Programming Theory : NWPT 2009 : Lyngby, Denmark, 14-16 October 2009 : proceedings2009 / p. 83-85 https://jmchapman.io/papers/Assisted_Monads.pdf
• Monads need not be endofunctorsAltenkirch, Thorsten; Chapman, James; Uustalu, TarmoLogical methods in computer science2015 / p. 1-40 https://doi.org/10.2168/LMCS-11(1:3)2015 https://www.scopus.com/sourceid/19700175752 https://www.scopus.com/record/display.uri?eid=2-s2.0-84927621403&origin=inward&txGid=a351868f770191ae145fa316e19b7e44 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=LOG%20METH%20COMPUT%20SCI&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000353193000010
• Normalization by evaluation for lambda 2Altenkirch, Thorsten; Uustalu, TarmoFunctional and Logic Programming : 7th International Symposium, FLOPS 2004 : Nara, Japan, April 7-9, 2004 : proceedings2004 / p. [260]-275
• Relative monads formalisedAltenkirch, Thorsten; Chapman, James; Uustalu, TarmoJournal of formalized reasoning2014 / p. 1-43 https://doi.org/10.6092/issn.1972-5787/4389 https://www.scopus.com/sourceid/21100262198 https://www.scopus.com/record/display.uri?eid=2-s2.0-84904630409&origin=inward&txGid=417864a3d23c7ca8e897f9b405dcc50f