TY - JOUR AU - G. Alber AU - Th. Haslwanter AU - Peter Zoller BT - Journal of the Optical Society of America B DA - Jan-01-1988 DO - 10.1364/JOSAB.5.002439 PY - 1988 EP - 2439 T2 - Journal of the Optical Society of America B TI - One-photon resonant two-photon excitation of Rydberg series close to threshold VL - 5 SN - 0740-3224 ER -