diff --git a/bib/sivanov.bib b/bib/sivanov.bib
index f0cb6e7..64f23c6 100644
--- a/bib/sivanov.bib
+++ b/bib/sivanov.bib
@@ -13,7 +13,7 @@
   year      = {2018},
   url       = {https://doi.org/10.1007/s11047-017-9649-7},
   doi       = {10.1007/s11047-017-9649-7},
-  timestamp = {Tue, 26 Jun 2018 01:00:00 +0200},
+  timestamp = {Wed, 14 Nov 2018 00:00:00 +0100},
   biburl    = {https://dblp.org/rec/bib/journals/nc/AlhazovFIOV18},
   bibsource = {dblp computer science bibliography, https://dblp.org}
 }
@@ -113,7 +113,7 @@
   year      = {2017},
   url       = {https://doi.org/10.7717/peerj-cs.103},
   doi       = {10.7717/peerj-cs.103},
-  timestamp = {Wed, 15 Aug 2018 01:00:00 +0200},
+  timestamp = {Wed, 14 Nov 2018 00:00:00 +0100},
   biburl    = {https://dblp.org/rec/bib/journals/peerj-cs/MeurerSPCKRKIMS17},
   bibsource = {dblp computer science bibliography, https://dblp.org}
 }
@@ -161,7 +161,7 @@
   year      = {2017},
   url       = {https://doi.org/10.1007/978-3-319-72150-7\_46},
   doi       = {10.1007/978-3-319-72150-7\_46},
-  timestamp = {Thu, 08 Feb 2018 00:00:00 +0100},
+  timestamp = {Fri, 02 Nov 2018 09:39:36 +0100},
   biburl    = {https://dblp.org/rec/bib/conf/complexnetworks/VuongCIGT17},
   bibsource = {dblp computer science bibliography, https://dblp.org}
 }
@@ -206,7 +206,7 @@
   year      = {2017},
   url       = {https://doi.org/10.4204/EPTCS.252.6},
   doi       = {10.4204/EPTCS.252.6},
-  timestamp = {Mon, 13 Aug 2018 16:49:00 +0200},
+  timestamp = {Wed, 12 Sep 2018 01:00:00 +0200},
   biburl    = {https://dblp.org/rec/bib/journals/corr/abs-1708-06458},
   bibsource = {dblp computer science bibliography, https://dblp.org}
 }
@@ -310,7 +310,7 @@
   year      = {2016},
   url       = {https://doi.org/10.1007/978-3-319-54072-6\_5},
   doi       = {10.1007/978-3-319-54072-6\_5},
-  timestamp = {Fri, 19 May 2017 01:25:07 +0200},
+  timestamp = {Fri, 02 Nov 2018 00:00:00 +0100},
   biburl    = {https://dblp.org/rec/bib/conf/membrane/AlhazovBF0PZ16},
   bibsource = {dblp computer science bibliography, https://dblp.org}
 }
@@ -475,7 +475,7 @@
   year      = {2015},
   url       = {https://doi.org/10.1007/978-3-319-21819-9\_12},
   doi       = {10.1007/978-3-319-21819-9\_12},
-  timestamp = {Mon, 05 Jun 2017 12:39:39 +0200},
+  timestamp = {Wed, 14 Nov 2018 10:55:48 +0100},
   biburl    = {https://dblp.org/rec/bib/conf/uc/Freund0S15},
   bibsource = {dblp computer science bibliography, https://dblp.org}
 }
@@ -639,7 +639,7 @@
   year      = {2013},
   url       = {https://doi.org/10.4204/EPTCS.128.14},
   doi       = {10.4204/EPTCS.128.14},
-  timestamp = {Mon, 13 Aug 2018 16:46:51 +0200},
+  timestamp = {Wed, 12 Sep 2018 01:05:13 +0200},
   biburl    = {https://dblp.org/rec/bib/journals/corr/FreundIOS13},
   bibsource = {dblp computer science bibliography, https://dblp.org}
 }