@misc{Gueorguiev19-WHCWIP-Normal, title = {Fingertip Friction Enhances Perception of Normal Force Changes}, author = {Gueorguiev, David and Lambert, Julien and Thonnard, Jean-Louis and Kuchenbecker, Katherine J.}, howpublished = {Work-in-progress paper (2 pages) presented at the IEEE World Haptics Conference (WHC)}, address = {Tokyo, Japan}, month = jul, year = {2019}, doi = {}, month_numeric = {7} }