@article{Run89,
 author = {R\"{u}nger, G.},
 title = {{Attractors for a Schr\"{o}dinger-Poisson-System}},
 journal = {Portugaliae Mathematica},
 volume = {46},
 number = {S},
 pages = {539--552},
 year = {1989},
 issn = {0032-5155},
 publisher = {Sociedade Portuguesa de Matematica},
}