SMÉKAL, Vladimír a Hana HOBZOVÁ. Quality of life in the old age. In ŘEHULKOVÁ, Oliva, Evžen ŘEHULKA, Marek BLATNÝ a Jiří et al. MAREŠ. Quality of life in the context of health and illness. 1st edition. Brno: MSD, 2008, s. 120-129. ISBN 978-80-7392-073-9.