TY - JOUR DA - 1977 LA - eng M2 - 113 PY - 1977 SN - 0340-3793 SP - 113- T2 - Applied physics TI - Comment on measuring photoionization cross sections of excited atomic states UR - https://nbn-resolving.org/urn:nbn:de:0070-bipr-13290 Y2 - 2024-11-22T10:07:56 ER -