New extremal Type II ℤ4-codes of length 32 obtained from Hadamard matrices. - Sara Ban; Dean Crnkovic; Matteo Mravic; Sanja Rukavina (Discret. Math. Algorithms Appl., 2019)

An algorithm for construction of extremal and near-extremal ( mathbb{Z}_4 )-codes ; Algoritam konstrukcije ekstremalnih i skoro ekstremalnih ( mathbb{Z}_4 )-kodova. - Matteo Mravic (2022)

Construction of extremal $ mathbb{Z}_{4} $-codes using a neighborhood search algorithm. - Dean Crnkovic; Matteo Mravic; Sanja Rukavina (Adv. Math. Commun., 2025)