@article{Guedon_2004,
 author = {Gu{\'e}don, Jean-Claude},
 year = {2004},
 title = {The 'Green' and 'Gold' Roads to Open Access: The Case for Mixing and Matching},
 url = {http://eprints.rclis.org/5860/},
 urldate = {2015-05-16},
 pages = {315--328},
 volume = {30},
 number = {4},
 journal = {Serials Review}
}