<br>
<noinclude>
==References==
<nocite>
ANDERSON1872
BIDDLE1992
BIDDLE1997
BIGSBY1854
BJORN1940
DAVIDSON1962
EDWARDS1998
GRIEG1940
LAKING1920
MARGESEN1997
OAKESHOTT1991
OTTAWAY1992
PEIRCE2002
RICHARDS1995
RICHARDS2004
ROESDAHL1981
ROGERS1993
THOMPSON2004
WATKIN1986
WILSON1964
WILSON1965
WILSON2008
WHEELER1927
</nocite>
<biblio force=false>#[[Template:Bib]]</biblio>
<HarvardReferences />
</noinclude>