When writing a paper that discusses previous work by the same set of authors, what is the correct way to refer to it?
For example,
"In 2012 Fred et al. introduced a third way of resolving the washing crisis [1234]."
Should this be written
"In 2012 we introduced a third way of resolving the washing crisis [1234]."
or perhaps
"In 2012 the current authors introduced a third way of resolving the washing crisis [1234]."
or even
"In 2012 Fred et al. (the current authors) introduced a third way of resolving the washing crisis [1234]."
Note that in this style the reference is [1234], in case that wasn't clear.