Can the gamma-ray source 3EG J2033+4118 be produced by the stellar system Cygnus OB2 No. 5?P. Benaglia, G. E. Romero, I. R. Stevens and D. F. TorresA&A, 366 2 (2001) 605-611DOI: https://doi.org/10.1051/0004-6361:20000261