@article{article, title  = {{The theory of classification part 5: Axioms, assertions and subtyping}},

 url = {{https://eprints.whiterose.ac.uk/79270/ }},

 year = {{2003}},

 month = {{1}},

 author = {{Simons AJH}},

 doi = {{10.5381/jot.2003.2.1.c2}},

 volume = {{2}},

 journal = {{Journal of Object Technology}},

 issue = {{1}},

 pages = {{13-21}},

 note = {{Accessed on 2024/12/22}}}