This article is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of
engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering articles
This article is within the scope of WikiProject Switzerland, a collaborative effort to improve the coverage of
Switzerland on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.SwitzerlandWikipedia:WikiProject SwitzerlandTemplate:WikiProject SwitzerlandSwitzerland articles
This article is within the scope of WikiProject United States, a collaborative effort to improve the coverage of topics relating to the
United States of America on Wikipedia. If you would like to participate, please visit the project page, where you can join the ongoing discussions.