De Figueiredo,  Djairo G <br/><br/>
Analysis and topology in nonlinear diffrential equations: a tribute to bernhard ruf on the occasion of his 60th borthday 

 - 1st 
 - New York  Birkhauser 
 - x,466,[I] p. 
<br/><br/><label>ISBN: </label>9783319042138 
<br/><br/><label>Subjects--Index Terms: </label>Nonlinear diffrential equations