1. Massive Lepton-Pair Production in Hadron-Hadron Collisions at High Energies
2. PANDA Collaboration, L.o.I. for the Proton–Antiproton Darmstadt Experiment, 2004 〈http://www.gsi.de/documents/DOC-2004-Jan-115-1.pdf〉.
3. GSI-ASSIA Technical Proposal, Spokeperson: R. Bertini, 〈http://www.gsi.de/documents/DOC-2004-Jan-152-1.ps〉.
4. P. Lenisa, F. Rathmann [for the PAX Collaboration], hep-ex/0505054.
5. R. Bertini, O. Yu Denisov, et al., proposal in preparation.