TY - RPRT TI - Connectivity-based ab initio phasing: from low resolution to a secondary structure. AU - Natalia Lunina AU - Vladimir Y Lunin AU - Alexandre Urzhumtsev PY - 2003 DO - 10.1107/s0907444903015154 UR - https://pubmed.ncbi.nlm.nih.gov/14501108/ ID - 14501108 ER -