TY - JOUR AU - G. Leuchs AU - S. Smith AU - S. Dixit AU - P. Lambropoulos BT - Physical Review Letters DA - Jan-02-1986 DO - 10.1103/PhysRevLett.56.708 PY - 1986 SP - 708 EP - 711 T2 - Physical Review Letters TI - Observation of interference between quadrupole and dipole transitions in low-energy (2-eV) photoionization from a sodium Rydberg state VL - 56 SN - 0031-9007 ER -