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This article is within the scope of WikiProject Academic Journals, a collaborative effort to improve the coverage of
Academic Journals 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.Academic JournalsWikipedia:WikiProject Academic JournalsTemplate:WikiProject Academic JournalsAcademic Journal articles
This article is within the scope of WikiProject Brazil, a collaborative effort to improve the coverage of
Brazil and
related topics 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.BrazilWikipedia:WikiProject BrazilTemplate:WikiProject BrazilBrazil articles
This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of
Physics 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.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles