@article{article43ac11ca,
title   = {MgB2 superconductors with addition of ZrB2 and different carbon sources},
author = {Silva, Lucas Barboza Sarno da and Hellstrom, E. E. and Rodrigues Junior, Durval},
year = {2014},
doi = {10.1088/1742-6596/507/1/012043},
journal   = {Journal of Physics: Conference Series}
}