ČERNĚNKO, Tomáš. Effectiveness of administrative services in Slovakia. In Engines of urban and regional development. Central european conference in regional science - CERS. Engines of urban and regional development : conference proceedings : 6th central european conference in regional science : 20 – 22 september 2017, Banská Bystrica, Slovak Republic. - Banská Bystrica : Faculty of Economics, Matej Bel University in Banská Bystrica, 2017. ISBN 978-80-557-1335-9, pp. 226-234. VEGA 1/0965/15.