Authors: Wilkinson, PN Henstock, DR Browne, LWA Polatidis, AG Augusto, P Readhead, ACS Pearson, TJ Xu, W Taylor, GB Vermeulen, RC

Citation: Pn. Wilkinson et al., Limits on the cosmological abundance of supermassive compact objects from a search for multiple imaging in compact radio sources, PHYS REV L, 86(4), 2001, pp. 584-587