LaTeX
Lamport TEX
Leslie Lamport
A TeX format with higher level commands for the production of complex documents. It contains provisions for headers and footers, sections, table of contents, cross-references, numbered equations, and citations.
LaTeX, A Document Preparation System, Leslie Lamport, Addison-Wesley, 1985.
LaTeX 2.09
Latex2e
June 1, 1994
A step along the way to Latex 3. It includes packages, and a more flexible NFSS (New Font Selection Scheme) to take better advantage of laser printers.
LaTeX, A Document Preparation System, Second edition for Latex2e, Leslie Lamport, Addison-Wesley, 1994.