Schleidt, Margret Humanethologie, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Schleidt, M. (1988). A universal time constant operating in human short-term behavior repetitions. Ethology, 77(1), 67-75. doi:10.1111/j.1439-0310.1988.tb00192.x.