The generated instances used in the article Bernadino, R., Santos, D., The Precedence Constrained Family Traveling Salesman Problem, (2026), can be found in the following link: https://www.dropbox.com/scl/fo/om284pc9e3zoktrd2gas0/AMyOmhcZEohK__cbO5birtM?rlkey=0kwcxhwboadsj3mxb00pbxet7&st=3xwbu22y&dl=0