Adoption of people engagement practices in continuous improvement programmes: a combined ISO standard-grey system approach. - Ricardo Martins Canhisares; Tiago F. A. C. Sigahi; Gustavo Hermínio Salati Marcondes de Moraes; Izabela Simon Rampasso; Milena Pavan Serafim; Matthew Pepper; Jiju Antony; Rosley Anholon (Grey Syst. Theory Appl., 2025)