Lower critical field and intragrain critical current density in the ruthenate-cuprate RuSr2Gd1.5Ce0.5Cu2O10M.G. das Virgens, S. Garcia and L. GhivelderEur. Phys. J. B, 49 2 (2006) 135-140DOI: https://doi.org/10.1140/epjb/e2006-00043-y