∂ part of node [[an-analysis-of-the-role-of-invariant-patterns]]
- about invariant patterns in a pattern language
- pdf https://journals.sagepub.com/doi/pdf/10.1177/2399808318761396
- "despite its popularity, the structure of A Pattern Language remains poorly understood. In response to this situation, this paper uses graph theory to examine Alexander’s language including the entire set of 253 patterns and over 1800 relationships between them."