Changes
/* References */
GRAHAM-CAMPBELL1980
GRAHAM-CAMPBELL1980b
GRAHAM-CAMPBELL1998
GREIG1940
FUGLESANG1980
KENDRICK1949
PENDLESONN1980
PETERSEN1919
REDKNAP2000
ROESDAHL1981
RYGH1885
WHEELER1927
WHEELER1935
WILSON2008
WOV
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