@article{Gorenstein:1966ula, author = "Gorenstein, P. and Grilli, M. and Soso, F. and Spillantini, P. and Nigro, M. and Schiavuta, E. and Valente, V.", title = "{Asymmetry ratios in the photoproduction of \ensuremath{\pi} + by linearly polarized \ensuremath{\gamma}-rays in the energy range 200\textendash{}400 MeV}", doi = "10.1016/0031-9163(66)90480-X", journal = "Phys. Lett.", volume = "23", pages = "394--396", year = "1966" }