Magnetization steps in a diluted Heisenberg antiferromagnetic chain: theory and experiments on '('CH IND. 3') IND. 4'N'Mn IND. x''Cd IND. 1-x''Cl IND. 3' - Paduan-Filho, Armando; Oliveira Jr., N. F.; Bindilatti, Valdir; Foner, S; Shapira, Y (Physical Review B, 2003)