Smith's Paper(s) on Site-Directed Mutagenesis

[John Slonimsky]

I was hoping someone might be able to tell me where Smith published
his initial paper(s) dealing with Site-Directed Mutagenesis; and if
so, in what year?
Also, have there been any reviews dealing with Site-Directed
Mutagenesis since Smith published his research?
Any and all information concerning this matter would be most
appreciated.