TY - RPRT TI - A common-lines based method for determining orientations for N > 3 particle projections simultaneously. AU - P A Penczek AU - J Zhu AU - J Frank PY - 1996 DO - 10.1016/0304-3991(96)00037-x UR - https://pubmed.ncbi.nlm.nih.gov/8921628/ ID - 8921628 ER -