First observation of the orbital in the mass region W. Urban, J.A. Pinston, T. Rząca-Urban, A. Złomaniec, G. Simpson, J.L. Durell, W.R. Phillips, A.G. Smith, B.J. Varley, I. Ahmad and N. Schulz Eur. Phys. J. A, 16 1 (2003) 11-15 Published online: 17 January 2003 DOI: 10.1140/epja/i2002-10104-y