Added citations

documentation/references.bib

@@ -0,0 +1,68 @@
+@misc{robocup,
+    title={Robocup Federation Official Website},
+    howpublished={\url{http://www.robocup.org/}},
+    note={Accessed: 2018-08-08}
+}
+
+@misc{bhuman,
+    title={B-Human},
+    howpublished={\url{https://www.b-human.de/index.html}},
+    note={Accessed: 2018-08-08}
+}
+
+@misc{nao,
+    title={Discover {Nao}, the little humanoid robot from SoftBank Robotics},
+    howpublished={\url{https://www.softbankrobotics.com/emea/en/robots/nao}},
+    note={Accessed: 2018-08-08}
+}
+
+@misc{naoqi-sdk,
+    title={{NAOqi} Developer guide},
+    howpublished={\url{http://doc.aldebaran.com/2-1/index_dev_guide.html}},
+    note={Accessed: 2018-08-08}
+}
+
+@misc{opencv,
+    title={OpenCV library},
+    howpublished={\url{https://opencv.org/}},
+    note={Accessed: 2018-08-08}
+}
+
+@article{numpy,
+    title={A guide to {NumPy}},
+    author={Travis E, Oliphant},
+    year={2006}
+}
+
+@misc{ros,
+    title={{ROS.org | Powering} the world's robots},
+    howpublished={\url{http://www.ros.org/}},
+    note={Accessed: 2018-08-08}
+}
+
+@misc{ball-detect,
+    title={Ball Tracking with {OpenCV}},
+    author={Rosenbrock, Adrian},
+    year={2015},
+    month={September},
+    howpublished={\url{
+https://www.pyimagesearch.com/2015/09/14/ball-tracking-with-opencv/
+    }},
+    note={Accessed: 2018-08-08}
+}
+
+@misc{contours,
+    title={{OpenCV}: Contours: Getting Started},
+    howpublished={\url{
+https://docs.opencv.org/3.4.1/d4/d73/tutorial_py_contours_begin.html
+    }},
+    note={Accessed: 2018-08-08}
+}
+
+@misc{convex-hull,
+    title={Convex Hull},
+    howpublished={\url{
+https://docs.opencv.org/2.4/doc/tutorials/imgproc/shapedescriptors/hull/hull.html
+    }},
+    note={Accessed: 2018-08-08}
+}