Double-photon bremsstrahlung in proton-proton scattering

Kugler, A., Bacelar, J. C. S., Huisman, H., Kalantar-Nayestanaki, N., Schadmand, S., Volkerts, M., van der Woude, A., Messchendorp, J. G., Taranenko, A., Tlustý, P., Pleskač, R., Wagner, V., Weiss, J., Wilschut, H. W., Wolf, A. R., Wolf, M., Yahlali, N., Tikhonov, A. Double-photon bremsstrahlung in proton-proton scattering. Groningen: Kernfysisch Versneller Institut, 1997. KVI Annual Report 1997.