@article{20.500.12614/1072, year = {2015}, url = {http://hdl.handle.net/20.500.12614/1072}, title = {Exchange and collective behavior of magnetic impurities in a disordered helical metal}, doi = {10.1103/PhysRevB.92.081410}, volume = {92}, journal = {Physical Review B - Condensed Matter and Materials Physics}, author = {Ochoa H.}, }