What is Source Type?
Users must assign one of the following two Source Types to each counter when submitting it: Self-explanatory or Linked References.
The Self-explanatory type represents counters that are supported by principles of logic and do not need external references. In contrast, when selecting the source type Linked References, the counter submitter acknowledges that (i) certain parts of the counter 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 counter description
The source type you choose will be available to users who are later assigned to evaluate your counter.
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)