Machine Translation: General Overview  

This chapter introduces the main concepts and methods used for machine translation systems from the beginnings of research in the 1950s until about 1990; it covers the main approaches of rule-based systems (direct, interlingua, transfer, knowledge based), and the principal translation tools; and it concludes with a brief historical sketch.

Hutchins, W. John. Oxford Univ Press (2003). Articles>Language>Localization>Machine Translation