821
by Simsion
Published 2005
822
Published 2007
823
Published 2007
824
825
by Fleisher
Published 2007
826
by Eisenberg
Published 2007
827
by Patton
Published 2006
828
by Friedman
Published 2008
829
830
by Tortora
Published 2010
831
by Aronson
Published 2010
832
by Chaudhuri
Published 2008
833
by Strang
Published 2007
834
by Szekeres
Published 2004
835
by Horn
Published 1985
836
by Mermin
Published 1990
837
by Schutz
Published 1980
838
by Rosei
Published 2006
839
by Brandt
Published 2009
840
Published 2011