@article {cerami2010positive,
	title = {Positive solutions for some non-autonomous Schr{\"o}dinger{\textendash}Poisson systems},
	journal = {Journal of Differential Equations},
	volume = {248},
	number = {3},
	year = {2010},
	pages = {521{\textendash}543},
	publisher = {Academic Press},
	author = {Giovanna Cerami and Giusi Vaira}
}
