The elevator to the stars: By 2020, a new manned experimental assembly complex may appear in orbit // Russian newspaper.- 2009. ...

The elevator to the stars: By 2020, a new manned experimental assembly complex may appear in orbit // Russian newspaper.- 2009. - No. 15 (4839) (January 30).- S. 10 / Yachmennikova, N. - 2009. -.Electronic copy source: Moscow Fires