TY - RPRT TI - FOUNDATION: a program to retrieve all possible structures containing a user-defined minimum number of matching query elements from three-dimensional databases. AU - C M Ho AU - G R Marshall PY - 1993 DO - 10.1007/bf00141572 UR - https://pubmed.ncbi.nlm.nih.gov/8473917/ ID - 8473917 ER -