diff --git a/Koli_2017/Koli_2017_Stanger.bib b/Koli_2017/Koli_2017_Stanger.bib
index f2d9757..2923e40 100644
--- a/Koli_2017/Koli_2017_Stanger.bib
+++ b/Koli_2017/Koli_2017_Stanger.bib
@@ -79,6 +79,13 @@
 	Numpages = {15},
 	Year = {2010}}
 
+@inproceedings{Calero.C-2001a-Database,
+	Author = {Coral Calero and Mario Piattini and Marcela Genero},
+	Crossref = {Oliveira.J-2001a-QuaTIC},
+	Pages = {79--85},
+	Title = {Database complexity metrics},
+	Url = {http://ceur-ws.org/Vol-1284/paper9.pdf}}
+
 @book{Cattell.R-2000a-ODMG3,
 	Address = {San Francisco, California, USA},
 	Author = {R. G. G. Cattell and Douglas K. Barry and Mark Berler and Jeff Eastman and David Jordan and Craig Russell and Olaf Schadow and Torsten Stanienda and Fernando Velez},
@@ -205,6 +212,14 @@
 	Keywords = {databases, information systems, test coverage, test data, testing},
 	Title = {The test data challenge for database-driven applications}}
 
+@inproceedings{Jamil.B-2010a-SMARtS,
+	Articleno = {27},
+	Author = {Bushra Jamil and Asma Batool},
+	Crossref = {ICIET-2010a-Proceedings},
+	Doi = {10.1109/ICIET.2010.5625716},
+	Numpages = {6},
+	Title = {{SMARtS}: {S}oftware metric analyzer for relational database systems}}
+
 @inproceedings{Kearns.R-1997a-A-teaching,
 	Author = {R. Kearns and Stephen Shead and Alan Fekete},
 	Crossref = {Sondergaard.H-1997a-ACSE},
@@ -268,6 +283,24 @@
 	Volume = {26},
 	Year = {2016}}
 
+@inproceedings{Pavlic.M-2008a-Database,
+	Author = {Mile Pavli{\'c} and Marin Kalu{\v z}a and Neven Vr{\v c}ek},
+	Crossref = {Aurer.B-2008a-CECIIS},
+	Pages = {577--583},
+	Title = {Database complexity measuring method},
+	Url = {http://archive.ceciis.foi.hr/app/index.php/ceciis/2008/paper/view/84}}
+
+@article{Piattini.M-2001a-Table,
+	Author = {Mario Piattini and Coral Calero and Marcela Genero},
+	Doi = {10.1023/A:1016670717863},
+	Journal = {Software Quality Journal},
+	Month = jun,
+	Number = {2},
+	Pages = {79--97},
+	Title = {Table oriented metrics for relational databases},
+	Volume = {9},
+	Year = {2001}}
+
 @inproceedings{Prior.J-2004a-Backwash,
 	Author = {Julia Coleman Prior and Raymond Lister},
 	Crossref = {Boyle.R-2004a-ITiCSE},
@@ -296,6 +329,18 @@
 	Doi = {10.1145/1026487.1008055},
 	Title = {{SQLator}: {A}n online {SQL} learning workbench}}
 
+@article{Sinha.B-2014a-Estimation,
+	Author = {Bhaskar R. Sinha and Gordon W. Romney and Pradip P. Dey and Mohammad N. Amin},
+	Issn = {1937-4771},
+	Journal = {Journal of Computing Sciences in Colleges},
+	Month = dec,
+	Number = {2},
+	Pages = {95--104},
+	Title = {Estimation of database complexity from modeling schemas},
+	Url = {http://dl.acm.org/citation.cfm?id=2667432.2667445},
+	Volume = {30},
+	Year = {2014}}
+
 @article{Spivey.J-1989a-An-introduction,
 	Author = {J.M. Spivey},
 	Doi = {10.1049/sej.1989.0006},
@@ -321,6 +366,16 @@
 
 # Crossrefs
 
+@proceedings{Aurer.B-2008a-CECIIS,
+	Address = {Vara{\v z}din, Croatia},
+	Booktitle = {Proceedings of the 19th Central European Conference on Information and Intelligent Systems (CECIIS 2008)},
+	Editor = {Boris Aurer and Miroslav Ba{\v c}a and Kornelije Rabuzin},
+	Isbn = {978-953-6071-04-3},
+	Month = {24--26~} # sep,
+	Publisher = {University of Zagreb},
+	Title = {Proceedings of the 19th Central European Conference on Information and Intelligent Systems (CECIIS 2008)},
+	Year = {2008}}
+
 @proceedings{Babu.S-2010a-DBTest,
 	Address = {Indianapolis, Indiana, USA},
 	Booktitle = {Proceedings of the 3rd International Workshop on Testing Database Systems (DBTest 2010)},
@@ -396,6 +451,14 @@
 	Title = {Proceedings of the 3rd HEA-ICS Workshop on Teaching Learning and Assessment in Databases (TLAD 2005)},
 	Year = {2005}}
 
+@proceedings{ICIET-2010a-Proceedings,
+	Address = {Karachi, Pakistan},
+	Booktitle = {Proceedings of the 2010 International Conference on Information and Emerging Technologies},
+	Month = {14--16~} # jun,
+	Publisher = {IEEE Computer Society},
+	Title = {Proceedings of the 2010 International Conference on Information and Emerging Technologies},
+	Year = {2010}}
+
 @proceedings{Laakso.M-2013a-KoliCalling,
 	Address = {Koli, Finland},
 	Editor = {Mikko-Jussi Laakso and {Simon}},
@@ -425,6 +488,16 @@
 	Title = {Proceedings of the 5th International Workshop on Testing Database Systems (DBTest 2012)},
 	Year = {2012}}
 
+@proceedings{Oliveira.J-2001a-QuaTIC,
+	Address = {Lisbon, Portugal},
+	Booktitle = {Proceedings of the 4th International Conference on the Quality of Information and Communications Technology (QuaTIC 2001)},
+	Editor = {Jo{\~a}o Nuno Oliveira and Fernando {Brito e Abreu} and Mario Piattini and Carlos Barreiras},
+	Month = mar # {~12--14},
+	Series = {CEUR Workshop Proceedings},
+	Title = {Proceedings of the 4th International Conference on the Quality of Information and Communications Technology (QuaTIC 2001)},
+	Volume = {1284},
+	Year = {2001}}
+
 @proceedings{SISY-2003a-Proceedings,
 	Address = {Subotica, Serbia},
 	Booktitle = {Proceedings of the 1st Serbian-Hungarian Joint Symposium on Intelligent Systems (SISY 2003)},