Where to discover in which package is some namespace?
<p>Well, there´s the (not so new) package system for <strong>ASP.NET MVC 5</strong> and theres a lot of new methods and namespaces. But sometimes I get stucked to know where to find some namespaces. </p>

<p>For example:</p>

<p>I need to use the <code>System.Web.Mvc</code> namespace so i search it on the NuGet ( in vs2015) and I dont get any microsoft official package to download in the list. 
So i go to the msdn documentation and find <a href="https://msdn.microsoft.com/pt-br/library/system.web.mvc(v=vs.118).aspx" rel="nofollow">this</a> link. And again, nothing about the package. </p>

<p>What im missing here? How to find the correct packages to download?</p>