O. A. Atassi, “Design of a robotic sixth finger for grasping enhancement,” Master’s thesis, Universita` degli Studi di Siena (advisor: Domenico Prattichizzo), December 2011.
 D. Prattichizzo, M. Malvezzi, I. Hussain, G. Salvietti. The Sixth-Finger: a Modular Extra-Finger to Enhance Human Hand Capabilities. In Proc. IEEE Int. Symp. in Robot and Human Interactive Communication, Pages 993-998, Edinburgh, United Kingdom, 2014.
 D. Prattichizzo, G. Salvietti, F. Chinello, M. Malvezzi. An Object-based Mapping Algorithm to Control Wearable Robotic Extra-Fingers. In Proc. IEEE/ASME Int. Conf. on Advanced Intelligent Mechatronics, Pages 1563-1568, Besançon, France, July, 2014.
 I. Hussain, L. Meli, C. Pacchierotti, G. Salvietti, D. Prattichizzo. Vibrotactile haptic fedback for intuitive control of robotic extra fingers. In Proc. IEEE World Haptics Conference (WHC), Chicago, IL, June, 2015.
 I. Hussain, G. Salvietti, L. Meli, C. Pacchierotti, D. Prattichizzo. Using the robotic sixth finger and vibrotactile feedback for grasp compensation in chronic stroke patients. In Proc. IEEE/RAS-EMBS International Conference on Rehabilitation Robotics (ICORR), Singapore, Republic of Singapore, 2015. [Finalist for the Best Student Paper Award]
 D. Prattichizzo. The interplay between humans and robots in grasping. In Proc. International Symposium on Robotic Research, Sestri Levante, Italy, September, 2015.
 I. Hussain, G. Salvietti, M. Malvezzi and D. Prattichizzo. Design guidelines for a wearable robotic extra-finger. In proc. IEEE Int. Forum on Research and Technology for Society and Industry, Turin, Italy September, 2015.
 G. Salvietti, I. Hussain, D. Prattichizzo. The Robotic Sixth Finger: a Wearable Compensatory Tool to Regain Grasping Capabilities in Paretic Hand. In Proc. ISRR 2015, In press, Sestri Levante, Italy, 2015.
 G. Salvietti, I. Hussain, D. Cioncoloni, S. Taddei, S. Rossi, D. Prattichizzo. Compensating Hand Function in Chronic Stroke Patients Through the Robotic Sixth Finger. In IEEE Transactions on Neural Systems and Rehabilitation Engineering , vol.PP, no.99, pp.1-1, February 2016.
 I. Hussain, G. Salvietti, G. Spagnoletti, D. Prattichizzo. The Soft-SixthFinger: a Wearable EMG Controlled Robotic Extra-Finger for Grasp Compensation in Chronic Stroke Patients. In IEEE Robotics and Automation Letters, vol. 1, no. 2, pp. 1000-1006, July 2016.
 I. Hussain, G. Spagnoletti, G. Salvietti, D. Prattichizzo, An EMG Interface for the Control of Motion and Compliance of a Supernumerary Robotic Finger. On Frontiers in Neurorobotics, November 2016.
 I. Hussain, G. Salvietti, D. Prattichizzo. On Control Interfaces for the Robotic Sixth Finger. In Proc. Augmented Human 2016, In press, Geneva, Switzerland, 2016.
I. Hussain, G. Spagnoletti, G. Salvietti, D. Prattichizzo, Towards wearable supernumerary robotic fingers to compensate the missing grasping abilities in hemiparetic limb. International Journal of Robotics Research. Under review.
 I. Hussain, G. Salvietti, G. Spagnoletti, M. Malvezzi, D. Cioncoloni, S. Rossi, D. Prattichizzo, From grasp compensation towards hemiparetic upper limb rehabilitation, Robotics and Autonomous Systems. Under review.
 I. Hussain, G. Salvietti, M. Malvezzi and D. Prattichizzo, On the Role of Stiffness Design for Fingertip Trajectories of Underactuated Modular Soft Hands., IEEE Robotics and Automation Letters. Under review.
 I. Hussain, G. Salvietti, G. Spagnoletti, D. Prattichizzo. A Soft Robotic Extra-Finger and Arm Support to Recover Grasp Capabilities in Chronic Stroke Patients, The International Symposium on Wearable Robotics, 2016.
Posters and Demonstrations
 G. Spagnoletti, I. Hussain, C. Pacchierotti, G. Salvietti, and D. Prattichizzo. The hRing as a wearable haptic interface for extra robotic fingers. Hands-on demostration at the IEEE Haptics Symposium (HAPTICS), Philadelphia, USA, 2016. Best Demonstration Award winner.
 I. Hussain, D. Prattichizzo, G. Spagnoletti, G. Salvietti. The Robotic-SixthFinger: a Wearable Robotic Compensatory Tool for Grasp Compensation in Chronic Stroke Patients. Workshop on Exploiting contact and dynamics in manipulation, ICRA 2016.
 I. Hussain, D. Prattichizzo, G. Spagnoletti, G. Salvietti. Wearable robotic compensatory devices for Object Grasping and Stabilization in Hemiparetic Limbs. Workshop on Human-Robot Interfaces for Enhanced Physical Interactions ICRA 2016.
 I. Hussain, G. Spagnoletti, C. Pacchierotti, D. Prattichizzo. A wearable haptic ring for the control of extra robotic fingers. Demo at AsiaHaptics 2016.