@article{publication-889,
	author={Lettl, Christopher and Rost, Katja and von Wartburg, Iwan},
	doi={10.1016/j.respol.2008.12.004},
	issn={0048-7333},
	journal={Research Policy},
	number=2,
	pages={243-254},
	publisher={Elsevier},
	title={Why are some independent inventors ‘heroes’ and others ‘hobbyists’?: the moderating role of technological diversity and specialization},
	volume=38,
	year=2009,
}