Često postavljana pitanja Where can I buy charts and publications of the Hydrographic Institute? Charts and publications of the Hydrographic Institute can be bought from authorised sales agents only. Authorised sales agents are listed under Sales agents. Some publications are also available in bookshops. Can charts and publications of the Hydrographic Institute be purchased online? Charts and publications of the Hydrographic Institute are available for purchase from our authorised distributors. Dominović online bookshop stocks a wide range of charts and publications of the Hydrographic Institute, offering them for sale online. Where can I buy official electronic navigation charts? Official electronic navigational charts (ENC) issued by the Hydrographic Institute of the Republic of Croatia are available through PRIMAR RENC (regional ENC coordinating centre) and its network of authorised distributors www.primar.org.