Rus, Mihaiela, u. a. „System Recording Behavioural Characteristics of Pigs – Preference for Different Flooring Systems“. Animal Welfare, Etológia és Tartástechnológia (AWETH), Bd. 3, Nr. 1, April 2007, S. 59-69, https://journal.uni-mate.hu/index.php/aweth/article/view/6890.