TY - RPRT TI - Detection of first-order structure in optic flow fields. AU - S F Te Pas AU - A M Kappers AU - J J Koenderink PY - 1996 DO - 10.1016/0042-6989(95)00084-d UR - https://pubmed.ncbi.nlm.nih.gov/8594824/ ID - 8594824 ER -