RSAII: Flexible Robotized Unitary Picking in Collaborative Environments for Order Preparation in Distribution Centers. - Loreto Susperregi; Ane Fernandez; Jorge Molina; Ander Iriondo; Basilio Sierra; Elena Lazkano; José María Martínez-Otzeta; Mikel Altuna; Leire Zubia; Unai Bautista (EuRoC, 2020)