@article{article, title = {{The theory of classification part 18: Polymorphism through the looking glass}}, url = {{https://eprints.whiterose.ac.uk/79261/ }}, year = {{2005}}, month = {{5}}, author = {{Simons AJH}}, volume = {{4}}, journal = {{Journal of Object Technology}}, issue = {{4}}, pages = {{7-18}}, note = {{Accessed on 2025/07/05}}}