Hope this question hasn't posted yet...

I saw lot of code (for example some Android source code) where fields name start with a "m" while static fields start with "s"

Example (taken from Android View class source):

private SparseArray<Object> mKeyedTags;

private static int sNextAccessibilityViewId;

I was wondering what "m" and "s" stand for... maybe is "m" mutable and "s" static?

Since it seems that is a largely adopted pattern do you know if there some literature about this kind of naming convention?