@electronic{www.mpg.de,
   title       = {Thomas Bührke: Wie kosmische Uhren ticken. In: MaxPlanckForschung 3|13, S. 48-54.}, 
   url         = {http://www.mpg.de/7541062/W002_Physik-Astronomie_048-055.pdf},
   biburl      = {https://puma.uni-kassel.de/url/746f7a346f77df49e907268185545fc6/stumme},
   keywords    = {Forschung Max Planck Schliessen Schließen Uhren abduktives kosmische},
   added-at    = {2014-11-10T16:28:26.000+0100},
   description = {},
   interhash   = {746f7a346f77df49e907268185545fc6}, 
   intrahash   = {746f7a346f77df49e907268185545fc6}
}

@electronic{www.iis.uni-hildesheim.de,
   title       = {IIS: Teaching SoSe06: FBS}, 
   url         = {http://www.iis.uni-hildesheim.de/Lehre/Sommersemester2006/VorlesungFBS/},
   biburl      = {https://puma.uni-kassel.de/url/a4d3c0a3d9aed685bd24ffd261128787/stumme},
   keywords    = {wissensbasierte künstliche schließen fallbasiertes vorlesung case intelligenz systeme cbr based wissensverarbeitung reasoning},
   added-at    = {2006-09-07T18:10:16.000+0200},
   description = {},
   interhash   = {a4d3c0a3d9aed685bd24ffd261128787}, 
   intrahash   = {a4d3c0a3d9aed685bd24ffd261128787}
}