adding more citations to bib file

topics/proteomics/tutorials/maxquant-msstats-dda-lfq/tutorial.bib

@@ -26,3 +26,34 @@ @article{Choi2014
   month = may,
   pages = {2524–2526}
 }
+
+@article{Bielow2015,
+  title = {Proteomics Quality Control: Quality Control Software for MaxQuant Results},
+  volume = {15},
+  ISSN = {1535-3907},
+  url = {http://dx.doi.org/10.1021/acs.jproteome.5b00780},
+  DOI = {10.1021/acs.jproteome.5b00780},
+  number = {3},
+  journal = {Journal of Proteome Research},
+  publisher = {American Chemical Society (ACS)},
+  author = {Bielow,  Chris and Mastrobuoni,  Guido and Kempa,  Stefan},
+  year = {2015},
+  month = dec,
+  pages = {777–787}
+}
+
+@article{Kll2011,
+  title = {Computational Mass Spectrometry–Based Proteomics},
+  volume = {7},
+  ISSN = {1553-7358},
+  url = {http://dx.doi.org/10.1371/journal.pcbi.1002277},
+  DOI = {10.1371/journal.pcbi.1002277},
+  number = {12},
+  journal = {PLoS Computational Biology},
+  publisher = {Public Library of Science (PLoS)},
+  author = {K\"{a}ll,  Lukas and Vitek,  Olga},
+  editor = {Lewitter,  Fran},
+  year = {2011},
+  month = dec,
+  pages = {e1002277}
+}