deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 0c85922..c990d0f 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{Superconductivity near 30 K without copper: the Ba0.6K0.4BiO3 perovskite}},  journal = {Nature},  }  @article{Sleight_1975,  doi = {10.1016/0038-1098(75)90327-0},  url = {http://dx.doi.org/10.1016/0038-1098(75)90327-0},  year = {1975},  month = {jul},  publisher = {Elsevier {BV}},  volume = {17},  number = {1},  pages = {27--28},  author = {A.W. Sleight and J.L. Gillson and P.E. Bierstedt},  title = {{High-temperature superconductivity in the {BaPb}1-{xBixO}3 systems}},  journal = {Solid State Communications},  }