@book{12124, author = {Sattinger, David H.}, title = {Group theoretic methods in bifurcation theory /}, publisher = {Springer-Verlag,}, year = {1979.}, series = {Lecture notes in mathematics ; 762}, address = {Berlin ;}, note = {Includes index.}, url = {http://www.loc.gov/catdir/enhancements/fy0903/79023605-t.html} }