Juurmaa, K et al.: The development of the new double acting ships for ice operation. Kvaerner Masa-Yards Arctic Technology, 2001Archived 3 March 2012 at the Wayback Machine and 2002Archived 4 September 2012 at the Wayback Machine.
Juurmaa, K et al.: The development of the new double acting ships for ice operation. Kvaerner Masa-Yards Arctic Technology, 2001Archived 3 March 2012 at the Wayback Machine and 2002Archived 4 September 2012 at the Wayback Machine.