@electronic{www.ganttproject.biz,
   title       = {Download GanttProject}, 
   url         = {http://www.ganttproject.biz/download},
   biburl      = {https://puma.uni-kassel.de/url/5795dfb9db3d620d910f2ecf2d481d57/benz},
   keywords    = {gantt gantt_chart project project_management software},
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}

@electronic{www.openworkbench.org,
   title       = {Open Workbench - Home}, 
   url         = {http://www.openworkbench.org/},
   biburl      = {https://puma.uni-kassel.de/url/aabe4913029798fc7ab45a0b1f2cd236/benz},
   keywords    = {free openworkbench project_management},
   added-at    = {2011-02-04T16:08:16.000+0100},
   description = {Open Workbench is an open source desktop application that provides robust project scheduling and management functionality. Already the scheduling standard for more than 100,000 project managers worldwide, Open Workbench is a free and powerful alternative to Microsoft Project. },
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   intrahash   = {aabe4913029798fc7ab45a0b1f2cd236}
}

@electronic{www.egroupware.org,
   title       = {eGroupWare: Home}, 
   url         = {http://www.egroupware.org/Home},
   biburl      = {https://puma.uni-kassel.de/url/44f0187beb57fcb2c359c8b2ee2aef42/benz},
   keywords    = {egroupware free project project_management tool},
   added-at    = {2011-02-04T16:08:03.000+0100},
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   intrahash   = {44f0187beb57fcb2c359c8b2ee2aef42}
}

@electronic{retrospectiva.org,
   title       = {Retrospectiva / Smarter Project Management}, 
   url         = {http://retrospectiva.org/overview},
   biburl      = {https://puma.uni-kassel.de/url/f84a0087b86bb4093a387653f455a4b0/benz},
   keywords    = {management project project_management retrospectiva software software_development tickets},
   added-at    = {2011-02-04T16:07:54.000+0100},
   description = {Open-source project management tool, intended to assist the collaborative aspect of work carried out by agile software development teams. },
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   intrahash   = {f84a0087b86bb4093a387653f455a4b0}
}

@electronic{www.redmine.org,
   title       = {Redmine - Overview - Redmine}, 
   url         = {http://www.redmine.org/},
   biburl      = {https://puma.uni-kassel.de/url/6705d40a50bc3ad596c1e6888e613bc4/benz},
   keywords    = {project_management redmine software},
   added-at    = {2011-02-04T16:06:43.000+0100},
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