Arbitrary amplitude dust acoustic solitary waves in a dusty plasma with an ion beam S.K. El-Labany, W.F. El-Taibany, N.A. El-Bedwehy and M.M. El-Fayoumy Eur. Phys. J. D, 64 2-3 (2011) 375-386 Published online: 23 August 2011 DOI: 10.1140/epjd/e2011-20135-y