TY - JOUR TI - Hyperspherical adiabatic approach for the helium atom PY - 1995 AU - Masili, M. AU - Hornos, José Eduardo Martinho AU - De Groote, J. J. T2 - Physical Review A DO - 10.1103/physreva.52.3362 UR - https://doi.org/10.1103/physreva.52.3362 PP - New York VL - 52 IS - 4 SP - 3362-3365 ER -