Remove double in(s) from proceedings

collab.bib

@@ -240,7 +240,7 @@
 @CONFERENCE{rshkarin2012organizing,
   author = {Shkarin, Roman and Shkarin, Andrej},
   title = {Organizing tests of Custom Image Filters for UFO},
-  booktitle = {In proceedings of 18th International Conference of Students and Young
+  booktitle = {Proceedings of 18th International Conference of Students and Young
 	Scientists “Modern Technique and Technologies”},
   year = {2012}
 }
@@ -249,7 +249,7 @@
   author = {Stevanovic, U. and Caselle, M. and Chilingaryan, S. and Herth, A.
       and Kopmann, A. and Vogelgesang, M. and Balzer, M. and Weber, M.},
   title = {High-speed camera with embedded FPGA processing},
-  booktitle = {In proceedings of Conference on Desing and Architecture for Signal
+  booktitle = {Proceedings of Conference on Desing and Architecture for Signal
 	and Image Processing (DASIP)},
   year = {2012}
 }