diff --git a/tex/cites.bib b/tex/cites.bib
index 7bcd6fd..590e0ba 100644
--- a/tex/cites.bib
+++ b/tex/cites.bib
@@ -15,8 +15,31 @@ year = "2017"
 }
 
 @article { speech,
-autor = "Baniriskhem K. Khonglah and S.R. Mahadeva Prasanna",
+author = "Baniriskhem K. Khonglah and S.R. Mahadeva Prasanna",
 title = "Speech / music classification using speech-specific features",
 journal = "Digital Signal Processing 48",
 year = "2016"
-)
\ No newline at end of file
+)
+
+@article { robust
+title = "ROBUST SPEECH / MUSIC CLASSIFICATION IN AUDIO DOCUMENTS"
+author = "Julien PINQUIER, Jean-Luc ROUAS and R´ egine ANDRE-OBRECHT"
+journal = "7^{th} International Conference on Spoken Language Processing"
+year = "2002"
+}
+
+@article { mirex
+title = "METHODS FOR SPEECH / MUSIC DETECTION AND CLASSIFICATION"
+author = "Nikolaos Tsipas Lazaros Vrysis Charalampos Dimoulas George Papanikolaou"
+journal = "MIREX"
+year = "2015"
+}
+
+@article { hybrid
+title = "Speech/Music Discrimination using Hybrid-Based Feature Extraction for Audio Data Indexing"
+author = "Kun-Ching, Wang, Member, IEEE, Yung-Ming, Yang and Ying-Ru, Yang"
+journal = "2017 International Conference on System Science and Engineering (ICSSE)"
+year = "2017"
+}
+
+