TY - JOUR T1 - The theory of classification part 3: Object encodings and recursion JO - Journal of Object Technology UR - https://eprints.whiterose.ac.uk/79277/ PY - 2002/01/01 AU - Simons AJH ED - DO - DOI: 10.5381/jot.2002.1.4.c4 VL - 1 IS - 4 SP - 49 EP - 57 Y2 - 2025/05/18 ER -