@article {gref2012controlled,
	title = {The controlled intravenous delivery of drugs using PEG-coated sterically stabilized nanospheres},
	journal = {Advanced drug delivery reviews},
	volume = {64},
	year = {2012},
	pages = {316{\textendash}326},
	publisher = {Elsevier},
	author = {Gref, R and Domb, A and Quellec, P and Blunk, T and M{\"u}ller, RH and Verbavatz, JM and Langer, R}
}
