 
Shedding New Light on an Age-Old Problem
Tree Care Industry, Volume 9, Number 3, Robert A. Christensen, March 1998 |
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The Ace in the Hole : Bringing Sanity to the Greens
On Course, Volume 51, Number 9, Robert A. Christensen, February, 1998 |
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Using New Technology to Solve an Old problem: Trees
USGA Green Section Record, Volume 35, Number 3, David A. Oatis, May/June , 1997 |
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Management by the Stars: Canadian Arborist Uses Astronomy to Shed More Light on Golf Course Greens
Golf Course Management, Adrien Gallant, P.Ag., March, 1997 |
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