Add references to Hannay survey

Author: jlinx

paper.tex

@@ -37,11 +37,11 @@
 \section{Introduction}
 Research software has been written and used for decades in a range of disciplines.
 It has been established that most research requires research software for its results~\autocite{Hettrick2015}.
-To solve pressing research challenges, better software is crucial~\autocite{Goble2014}.
+To solve pressing research challenges, better software is crucial~\autocite{Hannay2009, Goble2014}.
 During the past decade, it gained ever-growing attention and is becoming accepted as a research result on its own.
 %We follow here the definition: “Research Software includes source code files, algorithms, scripts, computational workflows and executables that were created during the research process or for a research purpose”, with full definition and discussion provided in~\autocite{Gruenpeter2021}.
 
-The number of people developing software in academia is constantly rising~\autocite{Hettrick2015}.
+The number of people developing software in academia is constantly rising~\autocite{Hannay2009, Hettrick2015}.
 Research Software Engineering are actions necessary to create, adapt or maintain Research Software or train others to do so.
 These actions are very diverse and so are the environments they are performed in.
 This position paper focuses on (groups of) research software engineers and researchers who require RSE for their research.