1. \cite{goossens:companion}[2]

  2. \cite{goossens:companion,hagen:metafun}[2, 1]

  3. \cite[page 99ff]{goossens:companion}[2, page 99ff]

  4. \cite[page 99ff]{goossens:companion,hagen:metafun}[2, 1, page 99ff]

Bibliography

[1]

Hans Hagen. Metafun. Preliminary Version October 27, 2000, October 2000. http://www.pragma-ade.com.

[2]

M. von Goossens, S. Rahtz, and F. Mittelbach. The LaTeX Graphics Companion. Addison-Wesley Publishing Company, Reading, Mass., 1997.