diff --git a/mybib.bib b/mybib.bib
index 56647bd..be0a707 100644
--- a/mybib.bib
+++ b/mybib.bib
@@ -1,3 +1,19 @@
+@article{Rodgers2013,
+	title = "A survey of Euler diagrams ",
+	journal = "Journal of Visual Languages and Computing ",
+	volume = "",
+	number = "0",
+	pages = " - ",
+	year = "2013",
+	note = "",
+	issn = "1045-926X",
+	doi = "http://dx.doi.org/10.1016/j.jvlc.2013.08.006",
+	url = "http://www.sciencedirect.com/science/article/pii/S1045926X13000499",
+	author = "Peter Rodgers",
+	keywords = "Euler diagrams; closed curves; venn; euler "
+}
+
+
 @INPROCEEDINGS{probfmea_4338247,
 author={Grunske, Lars and Colvin, R. and Winter, K.},
 booktitle={Quantitative Evaluation of Systems, 2007. QEST 2007. Fourth International Conference on the}, title={Probabilistic Model-Checking Support for FMEA},
diff --git a/related_papers_books/A_survey_of_Euler_diagrams.pdf b/related_papers_books/A_survey_of_Euler_diagrams.pdf
new file mode 100644
index 0000000..edc41ac
Binary files /dev/null and b/related_papers_books/A_survey_of_Euler_diagrams.pdf differ
diff --git a/submission_thesis/CH1_introduction/copy.tex b/submission_thesis/CH1_introduction/copy.tex
index b08115e..5ff639e 100644
--- a/submission_thesis/CH1_introduction/copy.tex
+++ b/submission_thesis/CH1_introduction/copy.tex
@@ -256,7 +256,7 @@ meant that the analyst was forced to associate one component failure mode with o
 These concepts were presented at the ``Euler~2004''~\cite{Clark200519} conference held at the University of Brighton. % 
 %
 This defined the concepts for modularising FMEA using the formal visual notations from Spider diagrams.
-This lead to work on rapidly calculating available zones in Euler diagrams~\cite{Clark_fastzone}.
+This lead to work on rapidly calculating available zones in Euler diagrams~\cite{Clark_fastzone,Rodgers2013}.
 %
 The spider diagram notation was useful in defining the concepts and 
 initial ideas, but a more traditional `spreadsheet' format has been used
diff --git a/submission_thesis/style.tex b/submission_thesis/style.tex
index 7fbebfc..6221ebd 100644
--- a/submission_thesis/style.tex
+++ b/submission_thesis/style.tex
@@ -129,8 +129,6 @@ amplifier typically implemented in an integrated circuit and is
 commonly used as a building block in analogue circuit design
 }}}
 
-
-
 \newcommand{\fmmdglossPFMEA}{\glossary{name={PFMEA},description={
 Production FMEA (PFMEA). 
 FMEA applied for cost benefit analysis typically used in mass production}}}