6 files changed, 14 insertions, 7 deletions
diff --git a/buch/papers/punktgruppen/tikz/combine-symmetries.tex b/buch/papers/punktgruppen/tikz/combine-symmetries.tex
index 84e0a76..f4ac52c 100644
--- a/buch/papers/punktgruppen/tikz/combine-symmetries.tex
+++ b/buch/papers/punktgruppen/tikz/combine-symmetries.tex
@@ -13,6 +13,7 @@
 
 \begin{document}
 \begin{tikzpicture}[
+    >=latex, 
     dot/.style = {
       draw, circle, thick, black, fill = gray!40!white,
       minimum size = 2mm,
diff --git a/buch/papers/punktgruppen/tikz/lattice.tex b/buch/papers/punktgruppen/tikz/lattice.tex
index 9c05af3..391ef20 100644
--- a/buch/papers/punktgruppen/tikz/lattice.tex
+++ b/buch/papers/punktgruppen/tikz/lattice.tex
@@ -13,12 +13,13 @@
 
 \begin{document}
 \begin{tikzpicture}[
-	dot/.style = {
-	  draw, circle, thick, black, fill = gray!40!white,
-	  minimum size = 2mm,
-	  inner sep = 0pt,
-	  outer sep = 1mm,
-	},
+    >=latex, 
+    dot/.style = {
+      draw, circle, thick, black, fill = gray!40!white,
+      minimum size = 2mm,
+      inner sep = 0pt,
+      outer sep = 1mm,
+    },
   ]
 
   \begin{scope}
diff --git a/buch/papers/punktgruppen/tikz/piezo-atoms.tex b/buch/papers/punktgruppen/tikz/piezo-atoms.tex
index 82a2710..1811392 100644
--- a/buch/papers/punktgruppen/tikz/piezo-atoms.tex
+++ b/buch/papers/punktgruppen/tikz/piezo-atoms.tex
@@ -13,6 +13,7 @@
 
 \begin{document}
   \begin{tikzpicture}[
+      >=latex, 
       node distance = 2mm,
       charge/.style = {
         circle, draw = black, thick,
diff --git a/buch/papers/punktgruppen/tikz/piezo.tex b/buch/papers/punktgruppen/tikz/piezo.tex
index 1d16ab7..736dbad 100644
--- a/buch/papers/punktgruppen/tikz/piezo.tex
+++ b/buch/papers/punktgruppen/tikz/piezo.tex
@@ -12,7 +12,9 @@
 \usetikzlibrary{calc}
 
 \begin{document}
-\begin{tikzpicture}
+\begin{tikzpicture}[
+    >=latex, 
+  ]
   \begin{scope}[
         node distance = 0cm
     ]
diff --git a/buch/papers/punktgruppen/tikz/projections.tex b/buch/papers/punktgruppen/tikz/projections.tex
index a763e77..64ab468 100644
--- a/buch/papers/punktgruppen/tikz/projections.tex
+++ b/buch/papers/punktgruppen/tikz/projections.tex
@@ -13,6 +13,7 @@
 
 \begin{document}
 \begin{tikzpicture}[
+    >=latex, 
     classcirc/.style = {
       draw = gray, thick, circle,
       minimum size = 12mm,
diff --git a/buch/papers/punktgruppen/tikz/symmetric-shapes.tex b/buch/papers/punktgruppen/tikz/symmetric-shapes.tex
index b2c051f..688fb61 100644
--- a/buch/papers/punktgruppen/tikz/symmetric-shapes.tex
+++ b/buch/papers/punktgruppen/tikz/symmetric-shapes.tex
@@ -14,6 +14,7 @@
 
 \begin{document}
 	\begin{tikzpicture}[
+      >=latex, 
 			node distance = 2cm,
 			shapetheme/.style = {
 				very thick, draw = black, fill = magenta!20!white,