Difference between meta keys with _ and without _
58889
Underscores in custom fields
117019
What makes a tag "meta" and are such tags inappropriate?
119521
Cite_key instead of a number, what is going on?
87887
Why can a Python dict have multiple keys with the same hash?
60964
What are the meta, super, and hyper keys?
72977
What does a type followed by _t (underscore-t) represent?
71747
What's the difference between $(stuff) and `stuff`?
156771
Why does Ruby 1.9.2 remove "." from LOAD_PATH, and what's the alternative?
99046
instance variable vs. symbol in ruby on rails (form_for)
48447
Ruby metaclass confusion
101523
Why is using `<<-` frowned upon and how can I avoid it?
109346
Is there a difference between "" and {} in BibTeX?
51454
What is the difference between 2 methods with ref object par and without?
23313
Difference between "and" and && in Ruby?
151825
Is there any difference between "foo is None" and "foo == None"?
71809
Difference between do_action and add_action
72725
What's the difference between \newcommand and \newcommand*?