TY - RPRT TI - Use of interreflection and shadow for surface contact. AU - C Madison AU - W Thompson AU - D Kersten AU - P Shirley AU - B Smits PY - 2001 DO - 10.3758/bf03194461 UR - https://pubmed.ncbi.nlm.nih.gov/11281095/ ID - 11281095 ER -