TY - RPRT TI - Parallel and antiparallel Holliday junctions differ in structure and stability. AU - M Lu AU - Q Guo AU - N C Seeman AU - N R Kallenbach PY - 1991 DO - 10.1016/0022-2836(91)90942-y UR - https://pubmed.ncbi.nlm.nih.gov/1942060/ ID - 1942060 ER -