TY - RPRT TI - A generalized method for multiple robotic manipulator programming applied to vertical-up welding AU - Fernandez, Kenneth R. AU - Cook, George E. AU - Andersen, Kristinn AU - Barnett, Robert Joel AU - Zein-Sabattou, Saleh PY - 1991 UR - https://ntrs.nasa.gov/citations/19920002000 ID - 19920002000 ER -