These are the articles that have been written about the sensors, ASICs, and kits. They are grouped by author
 

Carr, Joseph J.
Experimenting with Magnetic Sensors, 
Electronics Now,  
June 1998, Pp. 56 - 72.

Carr's Corner: More on Magnetometers, 
73 Amateur Radio Today,  
February 1998, Pp. 74 - 76.

Electronics Circuit Guidebook Volume 1: 
Sensors, Prompt Publications, 
A Division of Howard W. Sams & Company, 1997 
(ISBN 0-7906-1098-1).

Experimenting With A Magnetic Sensor (FGM-3), 
Nuts and Volts, 
August 1996, Pp. 108-111.

Sometimes Two Are Better Than One. Part 1. 
(Sensor Resolution Improvement Based On Radar Technique Known As Monopulse Resolution Improvement.), 
Nuts and Volts, 
September 1996, Pp. 44-46.

Sometimes Two Are Better Than One. Part 2, 
Nuts and Volts, 
October 1996, Pp. 84-86.

Carr's Corner, 
Number 73 Amateur Radio Today, 
December 1996, Pp. 53.

Magnetometer Project, 
Nuts and Volts, 
June 1997, Pp. 74-76.

FGM Series Magnetometer Data Sheets, 
Geo-Monitor, 
June 1996.

Magnetometer IC For Earth Field Monitoring, 
Geo-Monitor, 
July 1996.

Lancaster, Don
Introduction To Earth-Field Magnetometry and New Flux-Gate Sensors, 
Electronics Now, 
September 1996.

Noble, Richard and Risk, David
True Orientation (Electronic Compass Algorithms),
Electronics World/Wireless World, 
March 1997, Pp. 197-200.

Noble, Richard
Magnetic Sensing Applications (Various FGM-3 Applications),
Electronics World/Wireless World, 
November 1996, Pp. 830-835.

A New Direction in Orientation (FGM-3 Sensor as Compass),
Electronics World/Wireless World, 
January 1996, Pp. 40-44.

Flux Gate Magnetometry, 
Electronics World/Wireless World, 
September 1991 Pages 726-732.

Patton, Charles
An Acceleromter Seismometer, 
Geo-Monitor Newsletter, 
April 1997.

An Acceleromter Seismometer Part 2, 
Geo-Monitor Newsletter, 
May-June 1997.

An Acceleromter Seismometer Part 3, 
Geo-Monitor Newsletter, 
July-August 1997.