CHALUPA, David. Asymptotical Sparseness of a Slovak Social Network. In IIT.SRC 2013: student research conference [elektronický zdroj] : 9th Student Research Conference in Informatics and Information Technologies Bratislava, April 23, 2013. Post-conference proceedings. 1. vyd. Bratislava : Nakladateľstvo STU, 2013, s.online, s. 61-66. ISBN 978-80-227-4111-8. I*