diff --git a/oss2018/spb-oss-2018.bib b/oss2018/spb-oss-2018.bib
index 6b056e3..8da6cb2 100644
--- a/oss2018/spb-oss-2018.bib
+++ b/oss2018/spb-oss-2018.bib
@@ -104,7 +104,6 @@
  journal = {Commun. ACM},
  volume = {48},
  number = {5},
- month = may,
  year = {2005},
  pages = {72--78},
  publisher = {ACM},
@@ -153,8 +152,6 @@
 @inproceedings{melo2013agileBr,
   author = {Melo, Claudia and Santos, Viviane and Katayama, Eduardo and Corbucci, Hugo and Prikladnicki, Rafael and Goldman, Alfredo and Kon, Fabio},
   year = {2013},
-  month = {11},
-  pages = {},
   title = {The evolution of agile software development in Brazil},
   volume = {19},
   booktitle = {Journal of the Brazilian Computer Society}
@@ -181,18 +178,16 @@
 @article{cho2011gap,
  author = {Chookittikul, Wajee and Kourik, Janet and E. Maher, Peter},
  year = {2011},
- month = {04},
  pages = {239-244},
  title = {Reducing the Gap between Academia and Industry: The Case for Agile Methods in Thailand},
  booktitle = {Proceedings of the 2011 Eighth International Conference on Information Technology: New Generations}
 }
 
-@inproceedings{siqueira2018cd,
+@unpublished{siqueira2018cd,
  author = {Siqueira, Rodrigo and Camarinha, Diego and Wen, Melissa and Meirelles, Paulo and Kon, Fabio},
  title = {Continuous Delivery: Building Trust in a Large-Scale, Complex Government Organization},
- booktitle = {Approved to IEEE Software - Special Issue: Release Engineering},
- year = {2018},
- organization={IEEE}
+ note = {Approved to IEEE Software - Special Issue: Release Engineering},
+ year = {2018}
 }
 
 @inproceedings{capiluppi,
@@ -239,7 +234,5 @@ volume = "59",
 pages = "1 - 27",
 year = "2003",
 issn = "0065-2458",
-doi = "https://doi.org/10.1016/S0065-2458(03)59001-5",
-url = "http://www.sciencedirect.com/science/article/pii/S0065245803590015",
 author = "Grady Booch and Alan W. Brown"
 }
--
libgit2 0.21.2