Citation: Jh. Macgibbon et al., LIMITS ON BLACK-HOLE FORMATION FROM COSMIC-STRING LOOPS, Physical review. D. Particles and fields, 57(4), 1998, pp. 2158-2165
Citation: R. Opher et Uf. Wichoski, ORIGIN OF MAGNETIC-FIELDS IN THE UNIVERSE DUE TO NONMINIMAL GRAVITATIONAL-ELECTROMAGNETIC COUPLING, Physical review letters, 78(5), 1997, pp. 787-790