What is Source Type?
Users must assign one of the following two Source Types to each argument when submitting it: Self-explanatory or Linked References.
The Self-explanatory type represents arguments that are supported by principles of logic and do not need external references. In contrast, when selecting the source type Linked References, the argument submitter acknowledges that (i) certain parts of the argument require external references, and that (ii) they are linking those references to the submission. That's where the name Linked References comes from. The recommended way to add references is by including hyperlinks in the argument description.
The source type you choose will be available to users who are later assigned to evaluate your argument.
Overview
Keyboard Shortcuts
Ctrl + B (Windows/Linux) or Cmd + B (Mac)
Ctrl + I (Windows/Linux) or Cmd + I (Mac)
Ctrl + K (Windows/Linux) or Cmd + K (Mac)
Ctrl + Shift + V (Windows/Linux) or Cmd + Shift + V (Mac)