Columbia subject headings:
Bifurcation theory--Congresses.
Differential equations, Nonlinear--Congresses.
Differential equations, Partial--Congresses.
Eigenvalues--Congresses.
Harvard subject headings:
Bifurcation theory--Congresses.
Differential equations, Nonlinear--Congresses.
Differential equations, Partial--Congresses.
Eigenvalues--Congresses.
Princeton subject headings:
Bifurcation theory--Congresses.
Differential equations, Nonlinear--Congresses.
Differential equations, Partial--Congresses.
Eigenvales--Congresses.