\begin{longtable}{@{}lll@{}}
%\begin{table*}{tbp}
\caption{Summary of the VEIN classes, functions and internal data.} \\
\label{ta:functions}\\
%\small
%\centering
%\scalebox{0.91}{	
		
%\begin{tabular}{@{}llrrrrrrrrrrrr@{}}
%[1]: The length of the list depends on the age distribution.
%[2]: hese functions access and match the selected parameters with an internal look-up table of emission factors \cite{copert}' \cite{evap}
%[3]: The streets are {\tt SpatialLinesDataFrame} of the western part of São Paulo.
%[4]: It returns a {\tt SpatialPolygonsDataFrame} or a {\tt SpatialGridDataFrame}.


\hline			%\toprule
	Function  & Description &  Reference \endhead \hline %\midrule
	age\_hdv &	Distribution of HDV by age of use                   &	 \cite{MMA2011}   \\ 
	age\_ldv  &	Distribution of LDV by age of use                   &	\cite{MMA2011}  \\
	age\_moto  & Distribution of Motorcycle by age of use           &  \cite{MMA2011}  \\ 
	ef\_evap  &	Evaporative emission factors                        &	\cite{MelliosNtziachristos2016}  \\
	ef\_hdv\_scaled  &	List of scaled emission factors for HDV     &	\cite{NtziachristosSamaras2016} \\
	ef\_hdv\_speed  & HDV Emission factors                          &	 \cite{NtziachristosSamaras2016}\\
	ef\_ldv\_cold  & LDV cold start emission factors                &	 \cite{NtziachristosSamaras2016}\\
	ef\_ldv\_cold\_list &	List of LDV cold start emission factors &	 \cite{NtziachristosSamaras2016}\\
	ef\_ldv\_scaled  &	List of scaled emission factors for LDV     &	 \cite{NtziachristosSamaras2016}\\
	ef\_ldv\_speed  &	LDV Emission factors                        &	 \cite{NtziachristosSamaras2016}\\ 
	ef\_wear  &	Tyre and break wear, and road abrassion             &	 \cite{NtziachristosBoulter2009}\\ 
	EmissionFactors  &	Creates class {\tt EmissionFactors} ($\mathrm{g \cdot km^{-1}}$) &	    \\
	EmissionFactorsList  &	Creates class {\tt EmissionFactorsList} ($\mathrm{g \cdot km^{-1}}$) &	    \\
	Emissions  &	Creates class {\tt Emissions} ($\mathrm{g \cdot h^{-1}}$) &	   \\
	EmissionsArray  &	Creates class {\tt EmissionsArray} ($\mathrm{g \cdot h^{-1}}$) &	    \\
	EmissionsList  &	Creates class {\tt EmissionsList} ($\mathrm{g \cdot h^{-1}}$) &	    \\
	emis  &	Estimation to hour and day of the week &	  \\
	emis\_cold  &	Cold start estimation &		\cite{NtziachristosSamaras2016}  \\
	emis\_det  &	Deterioration factors &		 \cite{NtziachristosSamaras2016}\\
    emis\_evap  &	Evaporative estimation &		 \cite{MelliosNtziachristos2016}\\
	emis\_grid  &	Allocation on rectangular grid &		  \\
	emis\_paved  &	Re-suspension of paved roads&		 \cite{paved}\\
	emis\_post  &	Post processing of emissions &		 \\
	emis\_wear  &	Estimation of wear emissions &		 \cite{NtziachristosBoulter2009}\\
	emis\_wrf  &	Creating data-frame to WRF-Chem &	 \cite{VaraVelaetal2015}\\
	Evaporative  &	Creates class {\tt Evaporative} ($\mathrm{g \cdot d^{-1}}$) &	    \\
	fe2015  &	Data of CETESB emission factors &		 \cite{CETESB2015}\\
	fkm  &	Data of mileage functions by vehicle  &		 \cite{BruniBales2013}\\
	hot\_soak  &	Hot soak evaporative &		 \cite{MelliosNtziachristos2016}\\
	make\_grid  &	Rectangular grid &		  \\
	my\_age  &	Distribution of vehicles by age of use &		  \\
	net  &	Data of traffic simulation of west São Paulo &	 \cite{CET2014} \\ %\midrule
	netspeed  &	Estimate average speed &		  \\ 
    pc\_profile  &	Data of temporal factors &		 \cite{ARTESP2012} \\
    pc\_cold  &	Data of vehicle start pattern &	 \cite{ivesp} \\
	running\_losses  &	Evaporative estimation &		 \cite{MelliosNtziachristos2016}\\ 
    speciate &	Split by species &	  	 \cite{NtziachristosSamaras2016},\\
     & & \cite{Rafee2015}\\ 
    Speed  &	Creates class {\tt Speed} ($\mathrm{km \cdot h^{-1}}$) &	    \\ 
	temp\_fact  &	Expand hourly traffic &		 \\ 
	Vehicles  &	Creates class {\tt Vehicles} ($\mathrm{1 \cdot h^{-1}}$) &	    \\
	vkm  &	Determination of vehicle-kilometers &		  \\
\hline
	%\end{tabular}
	%}
%\begin{tablenotes} %AR: Footnotes: These should be avoided, as they tend to disrupt the flow of the text. If absolutely necessary, they should be numbered consecutively. Footnotes to tables should be marked by lowercase letters. (GMD)
%\end{table*}
\end{longtable}

%\end{tablenotes}