13. Who studied the 'implied reader' of the poem 'To His Coy Mistress' as distinct from the 'fictive lady' - who would 'be able to summon up a certain number of earlier or contemporaneous examples of this kind of love poem and who could be counted on, in short, to supply the models which Marvell may variously have been evoking, imitating, distorting, subverting or transcending'. ?