FIG Working Week 2017 : technical programme and proceedings. Helsinki, Finland, 29 May - 2. June 2017 [elektronický zdroj]. 1. vyd. Copenhagen : International Federation of Surveyors, FIG, 2017. online. Available on Internet: <https://www.fig.net/fig2017/technical_program.htm> ISBN 978-87-92853-61-5. ISSN 2307-4086.