where we get the source of K9 email client for android?

K9 mail client is开发者_JAVA技巧 open source android application. Where can we get the source files ?

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From the source checkout page in the Google Code project:

# Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://k9mail.googlecode.com/svn/k9mail/trunk/ k9mail-read-only