KUGLER, A., MESSCHENDORP, J. G., BACELAR, J. C. S., VAN GOETHEM, M. J., HARAKEH, M. N., HOEFMAN, M., HUISMAN, H., KALANTAR-NAYESTANAKI, N., LÖHNER, H., OSTENDORF, R. W., SCHADMAND, S., TURRISI, R., VOLKERTS, M., WILSCHUT, H. W., SIMON, R. S., WAGNER, V. Exclusive measurements of virtual Bremsstrahlung in proton-proton scattering at 190 MeV. Physical Review Letters. 1999, 82(13), 2649-2652. ISSN 0031-9007. E-ISSN 1079-7114.