16. In his first essay mentioning Abrams’s The Mirror and the Lamp, ‘Poetics and Periods in Literary History’, Sötemann uses both sets. In a subsequent essay on ‘Vier poetica’s’, Sötemann provides his own set of terms without even referring to Abrams’s original model. In due course, however, it became common practice to refer to the four Sötemannian poetics by means of Abrams’s original set of terms. See Sötemann, Over poëtica en poëzie .