In Computers and Geosciences a paper about gstat has appeared. The complete reference is:

Edzer J. Pebesma and Cees G. Wesseling, 1998,
Gstat: a program for geostatistical modelling, prediction and simulation.
Computers & Geosciences Vol. 24, No. 1, pp. 17-31

Quite a few corrections I made to the proofs have not made it into the final version.
The most important ones are listed below: