diff --git a/android.bib b/android.bib
index 34ed6acc7c83688f2778ed38b7fb618fce87d944..d0aa054019904728e9cc0d84c0324da2bbf0a21d 100644
--- a/android.bib
+++ b/android.bib
@@ -55,6 +55,16 @@
                   vulnerability},
 }
 
+@article{Taylor:2016:LSA,
+  author    = {Vincent F. Taylor and Ivan Martinovic},
+  title     = {A Longitudinal Study of App Permission Usage across the
+                  Google Play Store},
+  journal   = {CoRR},
+  volume    = {abs/1606.01708},
+  year      = {2016},
+  url       = {http://arxiv.org/abs/1606.01708},
+}
+
 @inproceedings{Tam:2015:CAR,
   author =	 {Tam, Kimberly and Khan, Salahuddin J. and Fattori,
                   Aristide and Cavallaro, Lorenzo},
@@ -669,6 +679,17 @@
   url =		 {http://arxiv.org/abs/1706.05042},
 }
 
+@inproceedings{Felt:2012:APU,
+   author = {Felt, Adrienne Porter and Ha, Elizabeth and Egelman, Serge and Haney, Ariel and Chin, Erika and Wagner, David},
+   title = {Android Permissions: User Attention, Comprehension, and Behavior},
+   crossref =	 "SOUPS2012",
+   isbn = {978-1-4503-1532-6},
+   pages = {3:1--3:14},
+   numpages = {14},
+   doi = {10.1145/2335356.2335360},
+   keywords = {Android, mobile phones, smartphones, usable security},
+}
+
 @inproceedings{Ren:BugFixesPrivacy:NDSS:2018,
   author =	 {Ren, Jingjing and Lindorfer, Martina and Dubois,
                   Daniel J. and Rao, Ashwin and Choffnes, David and
diff --git a/crossrefs.bib b/crossrefs.bib
index a3db7275e27d0f701f7f56fd20d6e4f716863a36..32d3c1755014d06db6ad5b450f16f3b03bbfecca 100644
--- a/crossrefs.bib
+++ b/crossrefs.bib
@@ -2607,6 +2607,14 @@
   month =	 oct,
 }
 
+@Proceedings{SOUPS2012,
+  title =	 "SOUPS 2012: Proceedings of the Eighth Symposium on Usable Privacy and Security",
+  booktitle =	 "SOUPS 2012: Proceedings of the Eighth Symposium on Usable Privacy and Security",
+  year =	 2012,
+  address =	 "Washington, D.C., USA",
+  month =	 jul,
+}
+
 @Proceedings{CODASPY2016,
   title =	 "CODASPY 2016: Proceedings of the 6th ACM Conference
                   on Data and Application Security and Privacy",