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@@ -239,20 +239,11 @@ A partir de [ALICE Offline Reconstruction](http://alice-offline.web.cern.ch/Acti
 
 ## Estudos complementares
 
-* TTree
-    * [TTree Class Reference](https://root.cern.ch/doc/v608/classTTree.html)
-* ROOT
-    * [ROOT Guide for Beginners](https://root.cern.ch/root/htmldoc/guides/primer/ROOTPrimer.html#motivation-and-introduction)
-* Geometry in ROOT
-    * [geomAlice.C File Reference](https://root.cern.ch/doc/master/geomAlice_8C.html)
-    * [MFT PCB Supports](https://github.com/rpezzi/AliceO2/blob/fa556f8db4240b5d261573602be3e1daa5bf3da6/Detectors/ITSMFT/MFT/base/src/Support.cxx)
-    * [TGeoCad: an Interface between ROOT and CADSystems](https://iopscience.iop.org/article/10.1088/1742-6596/523/1/012017/pdf)
-    * [Overview of EVE - the Event VisualizationEnvironment of ROOT](http://inspirehep.net/record/861001/files/jpconf10_219_042055.pdf)
-    * [TGeoManager Class Reference](https://root.cern.ch/doc/master/classTGeoManager.html#a6af8240b3f299a438b245654bc5b2a84)
 * Particle Tracking
     * [Slide presentation: Introduction to Charged Particles Tracking](http://www.physics.iitm.ac.in/~sercehep2013/track2_Gagan_Mohanty.pdf)
     * [Pattern Recognition and Event Reconstruction in Particle Physics Experiments [pdf]](https://arxiv.org/pdf/physics/0402039.pdf)
     * [Event reconstruction and particle identification in the ALICE experiment at the LHC [pdf]](https://www.epj-conferences.org/articles/epjconf/pdf/2014/07/epjconf_icfp2012_00029.pdf)
+    * [A fast introduction to the tracking and to the Kalman filter](https://www2.pv.infn.it/~rotondi/kalman_1.pdf)
 * Particle Identification
     * [Particle Identification by Christian Lippmann](http://arxiv.org/abs/1101.3276)
 * Quarkonia Production
@@ -293,9 +284,18 @@ A partir de [ALICE Offline Reconstruction](http://alice-offline.web.cern.ch/Acti
 
 ## Referências
 
+* TTree
+    * [TTree Class Reference](https://root.cern.ch/doc/v608/classTTree.html)
+* ROOT
+    * [ROOT Guide for Beginners](https://root.cern.ch/root/htmldoc/guides/primer/ROOTPrimer.html#motivation-and-introduction)
+* Geometry in ROOT
+    * [geomAlice.C File Reference](https://root.cern.ch/doc/master/geomAlice_8C.html)
+    * [MFT PCB Supports](https://github.com/rpezzi/AliceO2/blob/fa556f8db4240b5d261573602be3e1daa5bf3da6/Detectors/ITSMFT/MFT/base/src/Support.cxx)
+    * [TGeoCad: an Interface between ROOT and CADSystems](https://iopscience.iop.org/article/10.1088/1742-6596/523/1/012017/pdf)
+    * [Overview of EVE - the Event VisualizationEnvironment of ROOT](http://inspirehep.net/record/861001/files/jpconf10_219_042055.pdf)
+    * [TGeoManager Class Reference](https://root.cern.ch/doc/master/classTGeoManager.html#a6af8240b3f299a438b245654bc5b2a84)
 * [ALICE data flow](https://indico.cern.ch/event/666222/contributions/2768780/attachments/1551303/2437229/DPG_AnalysisTutorial_20171102.pdf)
 * [Performance of the ALICE Experiment](https://arxiv.org/abs/1402.4476v4)
-* [A fast introduction to the tracking and to the Kalman filter](https://www2.pv.infn.it/~rotondi/kalman_1.pdf)
 * [ALICE Technical Design Report of the Time Projection Chamber](https://edms.cern.ch/ui/file/398930/1/ALICE-DOC-2003-011.pdf)
 * [The ALICE TPC](https://www.sciencedirect.com/science/article/pii/S0168900210008910)