"Fre" . . . "Frequency" . "This frame element is defined as the number of times an event occurs per some unit of time. A Frequency expression answers the question how often. It is to be distinguished from Iterations, which pertains simply to the number of times an event occurs-Iteration expressions answer the question how many times."@en . . . . "2006-05-19T13:46:16+02:00"^^ . "10096"^^ .