Show 15 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: keyword exact "categorical variables" Add to list Journal Article A1 Evaluation of railway traffic control efficiency and its determinants Dr.ir. Bart Roets (UGent) and Johan Christiaens (UGent) (2015) EUROPEAN JOURNAL OF TRANSPORT AND INFRASTRUCTURE RESEARCH. 15(4). p.396-418