Globalization / multilanguage in WPF vb.net using Ressourcedictionaries .xaml - vb.net

Question

What is the best practice to set up a Multilingual App?
I already have a working project with Ressource-dictionaries. But it looks different to this Topic:
MSDN globalization-and-localization-overview.
This is my approach
Application.Xaml:
<Application.Resources >
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="/Ressources/Lang_EN.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Application.Resources>
Project-Explorer:
Explorer
Inside a File Lang_EN.xaml:
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:system="clr-namespace:System;assembly=mscorlib">
<!--Public Enum SpindleType
Milling_Spindle = 0
Main_Spindle = 1
Sub_Spindle = 2
Grinding_Spindle = 3
End Enum-->
<system:String x:Key="Timer">Timer</system:String>
<system:String x:Key="Drehzahl">Speed</system:String>
<system:String x:Key="APIStatus">API Status</system:String>
<system:String x:Key="MachineType">Machine type</system:String>
<system:String x:Key="MachineSN">Machine S/N</system:String>
<system:String x:Key="SpindleSN">Spindle S/N</system:String>
In my MainWindow.xaml.vb i have following sub that changes the UI Language:
Private Sub Button_NL_Click(sender As Object, e As RoutedEventArgs) Handles Button_NL.Click
NewDictSource("\Ressources\Lang_NL.xaml")
End Sub
The Mainwindow.xaml looks like that:
<TextBlock
x:Name="lbl_Timer_block3"
MinWidth="120"
VerticalAlignment="Center"
Text="{DynamicResource Timer}" Margin="0,0,10,0" />
Here in the MainWindow.xaml i use the Dynamic Ressource dictionary i declared in Application.xaml before.
Do you have a nicer and more easy way to do this?