SODOMOVÁ, Eva. Preface. In Statistical methods in socio-economic research : theory and applications. Scientific seminar. Statistical methods in socio-economic research : [proceedings] : theory and applications : 22nd slovak-polish-ukrainian scientific seminar : Virt, 20th - 23rd october, 2015. - Bratislava : ŠEVT, 2016. ISBN 978-80-8106-071-7, p. 5.