@book{ Solr-92230, title = {Abstract non-linear wave equations}, series = {Lecture notes in mathematics (Springer-Verlag)}, author = {Reed, Michael, 1942-}, address = {Berlin ; New York}, publisher = {Springer-Verlag}, year = {1976}, pages = {128}, note = {Based on lectures delivered at the Zentrum für interdisziplinäre Forschung in 1975.}, }