Reports

P. Magain, J. Surdej, J.P. Swings, U. Borgeest, R. Kayser, H. Kühr, S. Refsdal and M. Remy, Discovery of a quadruply lensed quasar: the 'clover leaf' H1413+117, Nature 334 (28 July 1988), pp. 325-328.

There are no relevant reports for this item