The following publications are possibly variants of this publication:
- Learning to grasp with parental scaffoldingEmre Ugur, Hande Çelikkanat, Erol Sahin, Yukie Nagai, Erhan Oztop. humanoids 2011: 480-486 [doi]
- Staged Development of Robot Skills: Behavior Formation, Affordance Learning and Imitation with MotioneseEmre Ugur, Yukie Nagai, Erol Sahin, Erhan Öztop. tamd, 7(2):119-139, 2015. [doi]