diff --git a/papers/fmea_software_hardware/software_fmea.tex b/papers/fmea_software_hardware/software_fmea.tex
index 9771f84..c4f7fc5 100644
--- a/papers/fmea_software_hardware/software_fmea.tex
+++ b/papers/fmea_software_hardware/software_fmea.tex
@@ -483,7 +483,7 @@ This voltage range forms our input requirement.
 We can now examine a software function that performs a conversion from the voltage read to 
 a per~mil representation of the {\ft} input current.
 %
-For the purpose of example the `C' programming language~\cite{kandr} is used.
+For the purpose of example the `C' programming language~\cite{kandr} is used\footnote{ C coding examples use the Misra~\cite{misra} and SIL 3 recomended language constraints~\cite{en61508}.}.
 We initially  assume a function \textbf{read\_ADC} which returns a floating point %double precision 
 value which represents the voltage read (see code sample in figure~\ref{fig:code_read_4_20_input}).
 
diff --git a/papers/fmmd_software_hardware/software_fmmd.tex b/papers/fmmd_software_hardware/software_fmmd.tex
index 0d4529d..f9d4c7e 100644
--- a/papers/fmmd_software_hardware/software_fmmd.tex
+++ b/papers/fmmd_software_hardware/software_fmmd.tex
@@ -545,7 +545,7 @@ This voltage range forms our input requirement.
 We can now examine a software function that performs a conversion from the voltage read to 
 a per~mil representation of the {\ft} input current.
 %
-For the purpose of example the `C' programming language~\cite{kandr} is used.
+For the purpose of example the `C' programming language~\cite{kandr} is used\footnote{ C coding examples use the Misra~\cite{misra} and SIL 3 recomended language constraints~\cite{en61508}.}.
 We initially  assume a function \textbf{read\_ADC} which returns a floating point %double precision 
 value which represents the voltage read (see code sample in figure~\ref{fig:code_read_4_20_input}).