  Soft behaviour of closed string amplitudes involving dilatons, gravitons and
anti-symmetric tensors, is studied in the framework of bosonic string theory.
The leading double soft limit of gluons is analysed as well, starting from
scattering amplitudes computed in the open bosonic string. Field theory
expressions are then obtained by sending the string tension to infinity. The
presented results have been derived in the papers of Ref.[1].
