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Price PB, Barwick SW, Williams WT, Porter JD.Price PB, et al. Among authors: barwick sw.Phys Rev Lett. 1989 Oct 30;63(18):1926-1929. doi: 10.1103/PhysRevLett.63.1926.Phys Rev Lett. 1989.PMID: 10040716No abstract available.