deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 5d85de5..eeb3c3f 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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@article{Peierls_1956,  doi = {10.1063/1.3059963},  url = {http://dx.doi.org/10.1063/1.3059963}, 
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title = {{Quantum Theory of Solids}},  journal = {Phys. Today},  }  @article{Gr_ner_1988,  doi = {10.1103/revmodphys.60.1129},  url = {http://dx.doi.org/10.1103/revmodphys.60.1129},  year = {1988},  month = {oct},  publisher = {American Physical Society ({APS})},  volume = {60},  number = {4},  pages = {1129--1181},  author = {G. Grüner},  title = {{The dynamics of charge-density waves}},  journal = {Reviews of Modern Physics},  }