Struwe, Michael. <br/><br/>
Variational methods :  applications to nonlinear partial differential equations and Hamiltonian systems / 
Michael Struwe. 
 - Berlin :  Springer-Verlag,  c1990. 
 - xiv, 244 p. 
<br/><br/><label>ISBN: </label>3540520228 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus of variations.<br/>Differential equations, Nonlinear.<br/>Hamilton-Jacobi equations.