This paper presents a strategy to characterize periodicals according performances established in relation to its congeners. Seven indicators are formulated: specific covering index, intervallic covering index, covering fraction, peak of relative performance, data pro index, competitiveness index and equalizer coefficient. Those indicators are defined in relation to common periodical' s output data: periodicity, number of editions and respective copies. Through a exemplified case are illustrated properties, representations, possible inferences and possibilities of use of those indicators.
Journals; Newspapers; Performance; Indicators; Informetrics; Communication
