1. IGBP PAGES/World Data Center for Paleoclimatology, NOAA/NCDC Paleoclimatology Program, Boulder, Colorado, USA;Chronology numbers Ca561, Ca562, Ca563, Ca564, Ca566, Ca 567, Ca 568, Ca 569, Ca 570, Ca 571, Ca 572, Ca 573, Ca 574, Ca 575, Ca 576, Ca 578, Ca 579, Ca 580, Ca 581, Ca 582, Ca583, Ca 584, Ca 585, Ca 586, Ca 587, Ca 588, Ca 589, Ca 590, Ca 591, Ca 592, Ca 593, Ca 595, Ca 596, Ca 597, Ca 602, Ca 603, Ca 604, Ca 605, Ca 606, Ca 607,2005c
2. Methods of Dendrochronology
3. Program CRONOL;Cook,1992
4. An Introduction to Tree-Ring Dating;Stokes,1968
5. Tree Rings and Climate;Fritts,1976