@article{derekd2013,
    author = {Delikostidis, Ioannis and Engel, Juri and Retsios, Bas and van Elzakker, Corné P.J.M. and Kraak, Menno-Jan and Döllner, Jürgen},
    journal = {The Journal of Navigation},
    title = {Increasing the Usability of Pedestrian Navigation Interfaces by means of Landmark Visibility Analysis},
    year = {2013},
    issn = {1469-7785},
    number = {04},
    pages = {523--537},
    volume = {66},
    affiliation = {Hasso-Plattner-Institut, University of Potsdam, Germany},
    doi = {10.1017/S0373463313000209},
    publisher = {The Royal Institute of Navigation},
}