Partial magnetic ordering and crystal structure of the ludwigities 'Co IND.2'Fe'O IND.2'B'O IND.3' and 'Ni IND.2'Fe'O IND.2'B'O IND.3' - Freitas, D. C.; Continentino, M. A.; Guimarães, R. B.; Fernandes, J. C.; Oliveira, E. P.; Santelli, R. E.; Ellena, Javier; Eslava, G. G.; Ghivelder, L. (Physical Review B, 2009)