TY - RPRT TI - Two-body-operator matrix-element factorization technique in U(n) AU - RD Kent AU - M Schlesinger AU - PS Ponnapalli PY - 1989 DO - 10.1103/physreva.39.19 UR - https://pubmed.ncbi.nlm.nih.gov/9900981/ ID - 9900981 ER -