Freestyled the essay

bibliography.bib

@@ -1,10 +1,26 @@
-@article{testy,
-  title={Citation analysis},
-  author={Nicolaisen, Jeppe},
-  journal={Annual review of information science and technology},
-  volume={41},
-  number={1},
-  pages={609--641},
-  year={2007},
-  publisher={Wiley Subscription Services, Inc., A Wiley Company Hoboken}
+@ARTICLE{shannon,
+  author={Shannon, C.E.},
+  journal={Proceedings of the IEEE},
+  title={Communication In The Presence Of Noise},
+  year={1998},
+  volume={86},
+  number={2},
+  pages={447-457},
+  keywords={Acoustic noise;Distortion;Telegraphy;Telephony;Communication systems;Bandwidth;Radio transmitters;Signal processing;Signal mapping;Teleprinting},
+  doi={10.1109/JPROC.1998.659497}}
+
+@BOOK{huffman,
+    author={Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, and Clifford Stein},
+    title={Introduction to Algorithms},
+    volume={2},
+    year={2001},
+    pages={385-392},
+    isbn={0-262-03293-7}
+}
+
+@article{modulation,
+  title={Principles of digital modulation},
+  author={Fitton, Mike},
+  journal={URL http://www. berk. tc/combas/digital\_mod. pdf},
+  year={2002}
 }