diff --git a/contributions/PhD_DataScience_2018/PhD-DataScience-2018.tex b/contributions/PhD_DataScience_2018/PhD-DataScience-2018.tex
index 31cfa89dcda76f18959401da69a06af26bf5733e..6c29f9a1b5620eba0f3d9773095b8041d58e8a57 100644
--- a/contributions/PhD_DataScience_2018/PhD-DataScience-2018.tex
+++ b/contributions/PhD_DataScience_2018/PhD-DataScience-2018.tex
@@ -1,7 +1,7 @@
 \documentclass[a4paper]{jpconf}
 \usepackage{graphicx}
 \begin{document}
-\title{ Infrastructures and Big Data processing as pillars in the XXXIII PhD couse in Data Sciece and Computation}
+\title{ Infrastructures and Big Data processing as pillars in the XXXIII PhD course in Data Sciece and Computation}
 
 %\address{Production Editor, \jpcs, \iopp, Dirac House, Temple Back, Bristol BS1~6BE, UK}
 \author{D. Salomoni$^1$, A. Costantini$^1$, C. D. Duma$^1$, B. Martelli$^1$, D. Cesini$^1$, E. Fattibene$^1$, D. Michelotto $^1$
diff --git a/contributions/summerstudent/summerstudent.tex b/contributions/summerstudent/summerstudent.tex
index c8dd0de3d48d3dccd888bd327ed302d4b874c1ac..990a1e4b6d763395bcff6ffc4280aa5db3bff324 100644
--- a/contributions/summerstudent/summerstudent.tex
+++ b/contributions/summerstudent/summerstudent.tex
@@ -3,7 +3,7 @@
 \begin{document}
 \title{INFN CNAF log analysis: a first experience with summer students}
 
-\author{D. Bonacorsi$^1$, A. Ceccanti$^2$, T. Diotalevi$^1$, A. Falabella$^2$, L. Giommi$^2$, B. Martelli$^2$, D. Michelotto$^2$, L. Morganti$^2$, S. Rossi Tisbeni$^1$, E. Vianello$^2$}
+\author{D. Bonacorsi$^1$, A. Ceccanti$^2$, T. Diotalevi$^1$, A. Falabella$^2$, L. Giommi$^2$, B. Martelli$^2$, D. Michelotto$^2$, L. Morganti$^2$, E. Ronchieri$^2$, S. Rossi Tisbeni$^1$, E. Vianello$^2$}
 
 \address{$^1$ University of Bologna, Bologna, IT}
 \address{$^2$ INFN-CNAF, Bologna, IT}