But Mr De Vol warns that over-reliance on revenues cannot work in the long term.

BBC: Can Washington learn from Californian budget compromise?

He performed on Guru's 1993 jazz-rap album, "Jazzmatazz, Vol. 1, " and his recordings were sampled on more than 100 hip-hop songs by such performers as Black Moon, Nas, Ludacris and A Tribe Called Quest.

WSJ: Innovative jazz trumpeter Donald Byrd dies at 80

Allison and George Poste, NATO ASI Series, Series A: Life Sciences Vol. 179, (ISBN 0-306-43386-9), 1989, Plenum Press, New York.

FORBES: Extradite Andrew Wakefield To Face Fraud Charges In The UK

Marine Ecosystems and Management, Vol.5, No 4, February-March 2012, an issue exploring the use of new media tools to broaden services to the fields of EBM and marine spatial planning.

UNESCO: CULTURE

Guest Editor, (with Albert Tuijnman), European Journal of Education: Research, Development and Policy, Special Issue, 'Chinese-European Cooperation in Education', Vol.44, No.1, March, 2009.

UNESCO: Purpose/Objectives of the Chair

Locatelli et al., Optics Express, Vol. 21, Issue 5, pp. 5379-5390 (2013).

ENGADGET: Infrared holography lets rescuers see people through walls, fire, walls of fire (video)

When his own rap trio Slum Village found a hit with their album Fantastic, Vol. 2, Yancey quickly became one of hip-hop's most sought-after producers.

NPR: Hip-Hop Producer, Rapper Jay Dee AKA J Dilla

Billed as a "DVD Court presentation", it was titled "DC Collection Vol 164", suggesting this was far from a one-off for the people who made the copy.

BBC: NEWS | Entertainment | Tracking down the pirate DVDs

Weitzner, Harold Abelson and Tim Berners-Lee, et al. Communications of the ACM, vol 51, issue 6, June 2008.

ECONOMIST: Sources and acknowledgments

Evidence for past supernovae is thin on the ground, although in 1999 German researchers found traces of iron-60 in south Pacific sediments ( Physical Review Letters, vol 83, p 18).

FORBES: Ancient Supernova Explosions Left Their Scars on Earth