TY - RPRT TI - Algebraic approach to matrix elements: Recurrence relations and closed formulas for hydrogenlike wave functions. AU - J Morales AU - JJ Peña AU - J López-Bonilla PY - 1992 DO - 10.1103/physreva.45.4259 UR - https://pubmed.ncbi.nlm.nih.gov/9907499/ ID - 9907499 ER -