diff --git a/structure.tex b/structure.tex
index ad53035..06c1f6f 100644
--- a/structure.tex
+++ b/structure.tex
@@ -28,6 +28,9 @@
 \usepackage{caption}
 \usepackage{enumitem}
 \usepackage{amssymb}
+\usepackage{tikzsymbols} % http://ctan.math.utah.edu/ctan/tex-archive/graphics/pgf/contrib/tikzsymbols/tikzsymbols.pdf
+\usepackage{textcomp}
+\usepackage{parskip}
 
 
 \bibliographystyle{unsrtnat} %styles list https://www.sharelatex.com/learn/Natbib_bibliography_styles