# Butson-type complex Hadamard matrices and association schemes on Galois rings of characteristic 4

> Research article (Special Matrices, 2018) · cited 10× · AI/ML

**Wikidata**: [openalex:W2962977763](https://www.wikidata.org/wiki/openalex:W2962977763)  
**Source**: https://4ort.xyz/entity/butson-type-complex-hadamard-matrices-and-association-schemes-on-galois-rings-of-characteristic-4