TY - RPRT TI - Real-time obstacle avoidance using central flow divergence and peripheral flow AU - Coombs, David AU - Herman, Martin AU - Hong, Tsai AU - Nashman, Marilyn PY - 1995 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 5605 DO - 10.6028/NIST.IR.5605 ER -