Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.

Similar Dynamic modelling and control of national economies, 1983 : proceedings of the 4th IFAC/IFORS/IIASA conference and the 1983 SEDC Conference on Economic Dynamics and Control, Washington, D.C., USA, 17-19 June 1983

Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.