Electron detachment of super-excited porphyrin anions in an electrostatic ion storage ringM. Goto, Y. Yasuda, S. Jinno, T. Takao, K. Hanada, H. Tanuma, T. Azuma, K.-I. Sugiura, H. Shiromaru and Y. AchibaEur. Phys. J. D, 43 1-3 (2007) 65-68DOI: https://doi.org/10.1140/epjd/e2007-00097-5