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4. see for example: Proc. 1st Int. Symp. on Polarisation Phenomena of Nucleons,ed.P.Huber, K.P.Meyer, Basel (1960), H.P.A. Suppl.VI.
5. Proc. 2nd Int. Symn. on Polarization Phenomena of Nucleons, ed. P. Huber, H. Schopper, Basel (Birkhäuser Verlag) (1965)