@online{chefenterprise,
  author = {chef},
  title = {{Enterprise-class features and support }},
  howpublished =
    "\url{http://www.getchef.com/enterprise-chef/#features-and-support}",
  year = {2014},
  note = "[Online; 06.03.2014]"
}

@online{chefrun,
  author = {chef}
  title = {{About the chef-client Run}}
  howpublished =
    "\url{http://docs.opscode.com/essentials_nodes_chef_run.html}",
  year = {2014}
  note = "[Online, 20.03.2014]"
}

@online{chefhistory,
  author = {chef}
  title = {{History of Chef: What's in a Name? }}
  howpublished =
    "\url{http://www.youtube.com/watch?v=Ia2ItmjRsw8&feature=plcp}",
  year = {2014}
  note = "[Online, 24.03.2014]"
}