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