An analysis of usefulness of prewar unification maps in selected procedures determining the course of borders on the example of Matyniów district / MĄCZYŃSKA Aneta // W: Innovations in geodesy, cartography, real estate management and surface water protection : III international scientific technical conference : Janów Lubelski, 6–8 June 2018 : book of abstracts / eds. Agnieszka Listosz, Żanna Stręk, Przemysław Leń ; University of Life Sciences in Lublin. Department of Environmental Engineering and Geodesy, [etc.]. — Lublin : [s. n.], 2018. — ISBN: 978-83-63657-97-0. — S. 49