Magnetic properties of ' ('na'X'gd') IND.2''CU''O IND.4' solid solution - Jardim, Renato de Figueiredo; Westphal, Carlos Henrique; Becerra, Carlos Castilla; Paduan-Filho, Armando; Oliveira Junior, Nei Fernandes de (Transport Properties of Superconductors, 1990)