Current and upcoming
lectures These are 'assigned'. They provide another presentation
or perspective on lecture details. I expect you to read (or skim, if
suggested) these.
Optional readings This list
contains additional papers closely connected to lecture material.
You may find one of these helpful if the assigned reading doesn't
make sense.
References to additional material
This is a list of papers on topics tangential to lecture material.
These are for your benefit if you are interested in a topic. You
are not expected to read these.